HomeMy WebLinkAboutA027 - 2023/24 Multi-Modal Roadway Improvements (Somerset Improvements - Stange Road)ITEM #:29
DATE:02-10-26
DEPT:PW
SUBJECT:2023/24 MULTI-MODAL ROADWAY IMPROVEMENTS (SOMERSET
IMPROVEMENTS - STANGE ROAD)
COUNCIL ACTION FORM
BACKGROUND:
At its September 23, 2025 meeting, the City Council approved a Professional Services
Agreement with Shive-Hattery, Inc., of West Des Moines, Iowa, for the 2023/24 Multi-Modal
Roadway Improvements (Somerset Improvements – Stange Road). As part of its proposal
submission, Shive-Hattery included a design alternative that differed from the conceptual
layout included in the Request for Proposal (RFP). The design alternatives are included as
attachments to this Council Action Form, with the Shive-Hattery proposal identified as Design
Alternative A and the Conceptual Layout from the RFP identified as Design Alternative B.
Both design alternatives reduce Stange Road to one lane in each direction between
Northridge Parkway and Aspen Road, implement all-way stop control at the intersections with
Northridge Parkway and Aspen Road, provide a dedicated bicycle facility to better separate
bicyclists from pedestrians in front of west-side businesses, and increase on-street parking
along Stange Road where feasible.
Although both design alternatives accomplish the project goals, Design Alternative A provides
facilities that offer greater comfort and better align with user expectations than Design
Alternative B. Specifically, Design Alternative A includes a new separated shared-use path for
bicyclists and pedestrians along Stange Road, whereas Design Alternative B would place a
two-way cycle track within the roadway by converting the existing southbound parallel parking.
In addition, the separated parking configuration along the west side of Stange Road in Design
Alternative A offers a higher level of user comfort compared to the parallel parking proposed in
Design Alternative B. Design Alternative A also simplifies the improvements needed to
address areas of localized flooding.
At the September 23, 2025 meeting, Council directed staff to gather business and
neighborhood feedback regarding the design alternatives.
PUBLIC OUTREACH:
Staff, in coordination with Shive-Hattery, worked with the Somerset Property Owners
Association to solicit feedback on the proposed alternatives. A presentation of the design
options was provided at the Association’s December 2025 board meeting. Feedback was
collected during the meeting, and an online feedback form was distributed to Association
members for a six-week period following the presentation.
This outreach focused on businesses adjacent to this segment of Stange Road. The
feedback received is attached and reflects a strong preference for Design Alternative
A. All but one of the nine responses favored Alternative A. The lone dissent expressed
concern about reducing Stange Road to fewer than four lanes due to anticipated future growth
1
north of the area.
Staff and Shive-Hattery also attended the Somerset Property Owners Association Annual
Meeting on February 5, 2026, where additional neighborhood feedback was received. The
neighborhood comments were consistent with the prior business feedback and strongly
favored Design Alternative A. The neighborhood is very excited to implement improvements to
Stange Road to reduce the speeds along Stange Road, improve the safety of the intersections
of Northridge Parkway and Aspen Road, and improve the overall walkability and bikeability
within the district.
FUTURE TRAFFIC:
As discussed at the September 23, 2025 City Council meeting, forecasted 2050 traffic
volumes do not support the need for four lanes along this segment of Stange Road.
Staff anticipates that a significant amount of through traffic will shift west to G.W.
Carver Avenue between Bloomington Road and 24th Street. G.W. Carver is better suited
to serve as the primary through route in this area due to fewer side streets and the
absence of direct driveway access, while Stange Road is intended to function as a more
walkable corridor that prioritizes local access and commercial activity.
CONTRACT AMENDMENT:
Based on the strong preference for Design Alternative A, staff worked with Shive-Hattery to
prepare a contract amendment revising the project scope to include design services for that
alternative. The original Professional Services Agreement approved by City Council was in the
amount of $55,000. Additional services included in the amendment involve the design
of a dedicated shared-use path along the east side of the crescent green space, added
pavement design for new driveway connections serving the west-side parking area, and
storm sewer modifications to address flooding concerns identified during the public
engagement process. The proposed amendment totals $27,000.
Preliminary cost estimates for both design alternatives are included in the attachments.
Design Alternative A has an estimated cost of $546,745, compared to $388,889 for
Design Alternative B. The higher cost for Alternative A reflects the same additional
elements that drive the increased design scope as described above.
The project is programmed with $450,000 of Road Use Tax funding in the 2023/24 Multi-Modal
Roadway Improvements Program. Project savings from previous fiscal year projects in
this program have resulted in an available balance of $225,828 to fund the proposed
contract amendment and the higher construction cost associated with Design
Alternative A. The table below shows the anticipated revenues and expenses for the project.
Expenses Amount Revenues Amount
Design (Original
Contract)$55,000
Design Amendment
(This Item)$27,000
Construction (Design
Alternative A)$546,745
2
Administration $30,000
FY 2023/24 Multi-
Modal Roadway
Improvements
$450,000
Multi-Modal Roadway
Improvements Road
Use Tax Balance
$225,828
Totals $658,745 $675,828
Providing direction regarding the design alternative and approving the contract
amendment will allow staff to proceed with further refinement of project design with the
goal of returning to City Council at a future date for approval of plans and
specifications for the project.
ALTERNATIVES:
1. a. Direct staff to proceed with Design Alternative A for the 2023/24 Multi-Modal Roadway
Improvements (Somerset Improvements - Stange Road).
b. Approve Amendment No. 1 to the design contract with Shive-Hattery, Inc. of West Des
Moines, IA, in the amount of $27,000.
2. Direct staff to proceed with Design Alternative B for the 2023/24 Multi-Modal Roadway
Improvements (Somerset Improvements - Stange Road).
3. Direct staff to consider different design alternatives for the 2023/24 Multi-Modal Roadway
Improvements (Somerset Improvements - Stange Road).
CITY MANAGER'S RECOMMENDED ACTION:
Based on staff evaluation and public feedback received, Design Alternative A is best
suited to address the project's goals of improving the safety of all transportation modes
through this area, and increasing the prioritization of bicycles and pedestrians traveling
to and through the area. Therefore, it is the recommendation of the City Manager that the
City Council adopt Alternative No. 1, as described above.
ATTACHMENT(S):
Stange Road Improvements - Community Feedback Form Results.pdf
Design Alternatives.pdf
Cost Estimates.pdf
Amendment 1 - Stange Multi-Modal.pdf
3
Timestamp Username Name (optional):
Which alternative do you prefer
Alternative A or Alternative B?
Why? Do you have any concerns about the proposed alternatives?
Are there any neighborhood
events we should be aware of
during construction?
Are there any issues you
experience in the area?
(Stormwater, parking,
accessibility, etc. )
Are there any additional
suggestions or ideas you'd like to
share?
2025/12/22 9:19:03 AM CST justin.dodge@hunziker.com Justin Dodge
Neither - we need to keep 4 lanes
through Somerset. With more
Northern growth, we need to be
able to move traffic through this
area Yes, I believe it constrains the traffic flow too much I can't think of any
I am most concerned about the
lack of sight towards oncoming
traffic - making a turn onto Stange
is very dangerous.
Let's take out the crescent to help
straighten the road, add parking
and add stop signs.
2025/12/22 10:45:07 AM CST bwoodward15@outlook.com Bill Woodward
Alternative A, B does not solve the
visibility issue in trying to turn left
from the east side of Stange off of
Northridge Parkway and it could
potentially make it much worse
with all of the additional parking
that will double of up on
southbound traffic. See above.
2025/12/22 11:04:31 AM CST mark@markdoyleinsurance.com Mark Doyle
Alternative A. I feel that the
businesses on the West side of the
street have a greater need for
parking and making the west side
primarily a parking lot is a safer
alternative. The back in parking
with Alternative B could present
safety issues with the angled back
in parking. There is a lot of traffic
heading north at different times of
the day and if people are stopping
then trying to back in, cars will get
backed up and may even collide
with those stopping to park. Outlined above Holloween Trick or Treat night
My partners and I own 2701
Stange Rd and we have had
multiple incidents over the years
with storm water filling up the
intersection and water coming into
our building. Nope. Thanks for considering.
2025/12/22 11:59:40 AM CST krettig70@gmail.com Kevin Rettig A
I like the proposed in alternative A, back-in diagonal parking in B does
not seem to be efficient, nor safe?
Halloween Trick or Treat near end
of October
During severe thunderstorms
water backs up over the sidewalks
and almost reaches the building
for GICU.
Please install 4-way stop signs
where proposed now rather than
waiting till the project is
completed. As you know, it's
dangerous.
2025/12/28 12:34:05 PM CST ClaytonJNevins@gmail.com Clayton Nevins
Highly prefer Alternative A. There is
already plenty of parking on each
side of Stange because of the
parking lots behind the buildings.
We do not need street parking on
both sides of Stange. New paved
path for bikes and pedestrians will
be great.
My concern is that there will be the same amount of cars and traffic
that drive through Somerset on Stange, but now there will be
congestion. Is there any way to encourage traffic to take Washington
Carver? I am concerned that the congestion itself won't be enough to
encourage this.
There are no parking issues in
Somerset. The parking lots behind
the businesses on Stange are
always available. We need more
foot traffic and businesses in our
business district, and I believe
Alternative A will help this the
most out of the two options.
4
2025/12/31 4:03:37 PM CST mjmccoy77@gmail.com Mike McCoy
A. I think that the back in parking
in alternative b will back up traffic
as people pull into the parking. I
also think you will see even more u-
turns at Aspen as people look to
park facing southbound. This is
already an issue at this
intersection and now it will occur
at a 4 way stop, increasing
frustration when it happens.
Yes. I don't believe people will go around on GW Carver as anticipated
without significant changes to the current intersections at Stange and
24th Street and at GW Carver and Bloomington. The turn lane heading
west at 24th street when headed northbound on Stange is short and
has a short turn light. The queue will back up and people will just use
Stange. Also, getting stuck at a stop sign at Bloomington with no signal
will be annoying at best. As someone that uses the walking paths along
GW Carver multiple times per day, if traffic is expected to increase, I
would like to see additional street lights in that area for pedestrian
safety.
I am also concerned with the volume of traffic increasing on Aspen due
to the 4 way stop. We purchased on Aspen as it was a low traffic side
street. Backing out in some areas can be difficult due to low visibility
caused by trees and parked cars. Increased traffic will make this more
difficult and potentially impact housing value. Especially when traffic
on this road can and does travel significantly above the posted speed
limit.
Based on what we saw this past summer with the Stange
reconstruction, I think this will likely just cause traffic to back up on
Stange. I honestly don't believe people will use other routes and
decrease traffic on Stange. It is one of the few direct routes to the north
that don't require wandering through residential neighborhoods or
going significantly out of your way. People headed to Fareway, Caseys
or using Hyde to head to/from Gilbert will continue to use Stange. No
Snow removal on Aspen on the
west side of Stange make that
Aspen a one lane road at Stange
after any snow event. I expect
there will be increased traffic on
Aspen with this switch so after
snow event traffic could back up
more than anticipated.
As a resident on Aspen, I love the
idea of a 4 way stop at our
intersection. The electric box on
the northwest corner causes a
blind intersection. The proposed 4
way stop fixes this issue. Thank
you for that.
2026/01/16 1:54:24 PM CST baldy879@gmail.com
Alternate A because I believe the
angled parking would allow for
easier access to the parking
spaces and a better flow of traffic
through that area. No No
The east side of Stange where it
intersects with Aspen is difficult to
see cars coming from the south.
Hopefully placing the stop sign
there will reduce the danger. No
2026/01/16 4:46:09 PM CST cycrzy@gmial.com
A-trees are preserved. New
pedestrian routes is the essence
of Somerset
My concern is if there is going to be modifications to GWC, like a stop
sign on Bloomington, to encourage traffic to take that route? If traffic
cant easily turn left at GWC and Bloomington, they aren't going that
way.
2026/01/16 4:48:56 PM CST mjnix@mac.com Jason Niegsch
A. I don't like the back in parking
option in option B. No
October-Somerset Trick or Treat
event
History of storm sewer backing up
near the State Farm business and
also in the parking lot near Greater
Iowa Credit Union
5
STANGE ROAD IMPROVEMENTS
CONCEPT A
CITY OF AMES | OCTOBER 2025
NORTHRIDG
E
P
A
R
K
W
A
Y
NORTHRIDG
E
P
A
R
K
W
A
Y
The majority of the existing trees would be maintained
Restripe for angled parking, adding a significant number of parking stalls
Reconstruct a portion of the median and intersection to allow for a continuous south-bound laneASPEN AVE
N
U
E
ASPEN AVE
N
U
E
S
T
A
N
G
E
R
O
A
D
Disconnect south-bound through lanes and build new parking lot driveway
Reconstruct a portion of the median and intersection to allow for a continuous south-bound lane
New paved path with
designated bike and
pedestrian routes
Maintain existing
pavement and parking
PHASE 1
Design Alternative A
6
STANGE ROAD IMPROVEMENTS
CONCEPT B
CITY OF AMES | OCTOBER 2025
Northridge Pkwy
Aspen Rd
Build ADA Compliant Bus Stop
Build ADA Compliant Bus Stop
Proposed = 26 + 2 ADA Angled Stalls
Existing = Approx. 18 Parallel Stalls
East Side:
Proposed = 20 Parallel Stalls
Existing = Approx. 20 Parallel Stalls
West Side:
Design Alternative B
7
ITEM NO. ITEM UNIT QUANTITY UNIT PRICE DIVISION I COST
1 Clearing and Grubbing LS 1 * 5,000.00$ =5,000.00$
2 Topsoil LS 1 * 5,000.00$ =5,000.00$
3 Excavation, Class 10 LS 1 * 10,000.00$ =10,000.00$
4 Subgrade Preparation SY 655 * 7.50$ =4,912.50$
5 Subbase, Modified SY 655 * 15.00$ =9,825.00$
6 Compaction Testing LS 1 * 4,500.00$ =4,500.00$
7 Storm Sewer, Trenched, RCP, 15 in. LF 38 * 90.00$ =3,420.00$
8 Storm Sewer, Trenched, RCP, 30 in. LF 20 * 150.00$ =3,000.00$
9 Storm Sewer, Trenched, RCP, 36 in. LF 57 * 180.00$ =10,260.00$
10 Removal of Storm Sewer, Any Type, Any Size LF 20 * 30.00$ =600.00$
11 Subdrain, Perforated, 4 in. LF 500 * 20.00$ =10,000.00$
12 Subdrain Cleanout, Riser, 6 in. EA 4 * 1,100.00$ =4,400.00$
13 Subdrain Outlets and Connections, Intake, 4 in. EA 4 * 275.00$ =1,100.00$
14 Valve Box Extension EA 1 * 750.00$ =750.00$
15 Manhole, SW-401, 48 in. EA 2 * 6,000.00$ =12,000.00$
16 Intake, SW-501 EA 2 * 5,000.00$ =10,000.00$
17 Intake, SW-505 EA 1 * 8,000.00$ =8,000.00$
18 Manhole Adjustment, Minor EA 2 * 1,750.00$ =3,500.00$
19 Remove Intake EA 3 * 1,000.00$ =3,000.00$
20 Pavement, PCC, 9 in. SY 480 * 75.00$ =36,000.00$
21 Removal of Sidewalk SY 280 * 15.00$ =4,200.00$
22 Shared Use Path, PCC, 6 in. SY 672 * 75.00$ =50,400.00$
23 Special Subgrade Preparation for Shared Use Path SY 1018 * 10.00$ =10,180.00$
24 Sidewalk, PCC, 6 in. SY 450 * 75.00$ =33,750.00$
25 Detectable Warning SF 260 * 60.00$ =15,600.00$
26 Driveway, Paved, PCC, 8 in. SY 396 * 85.00$ =33,660.00$
27 Pavement Removal SY 1445 * 10.00$ =14,450.00$
28 Painted Pavement Markings, High-Build STA 47.2 * 30.00$ =1,416.00$
29 Precut Symbols and Legends, Thermoplastic EA 6 * 525.00$ =3,150.00$
30 Pavement Markings Removed STA 11.5 * 70.00$ =805.00$
31 Grooves Cut for Pavement Markings STA 47.2 * 30.00$ =1,416.00$
32 Grooves Cut for Symbols and Legends EA 6 * 225.00$ =1,350.00$
33 Temporary Traffic Control LS 1 * 30,000.00$ =30,000.00$
34 Traffic Sign, Type A Assembly EA 20 * 250.00$ =5,000.00$
35 Remove and Salvage Traffic Sign Assembly EA 10 * 110.00$ =1,100.00$
36 Watering MGAL 31 * 75.00$ =2,325.00$
37 Sod SY 1590 * 7.50$ =11,925.00$
38 SWPPP Preparation LS 1 * 7,500.00$ =7,500.00$
39 SWPPP Management LS 1 * 4,000.00$ =4,000.00$
40 Filter Sock, 9 in. LF 1500 * 2.50$ =3,750.00$
41 Filter Socks, Removal LF 1500 * 0.50$ =750.00$
42 Inlet Protection Device, Grate EA 11 * 125.00$ =1,375.00$
43 Inlet Protection Device, Maintenance EA 11 * 25.00$ =275.00$
44 Construction Survey LS 1 * 15,000.00$ =15,000.00$
45 Mobilization LS 1 * 22,000.00$ =22,000.00$
46 Concrete Washout LS 1 * 5,000.00$ =5,000.00$
47 Remove Light Pole and Footing EA 4 * 500.00$ =2,000.00$
48 Light Pole Footing EA 4 * 2,000.00$ =8,000.00$
49 RRFB LS 1 * 20,000.00$ =20,000.00$
$455,645
$91,100
$546,745
**TOTAL PROJECT COSTS AND CONSTRUCTION COSTS PROVIDED HEREIN ARE MADE ON THE BASIS OF ENGINEER'S EXPERIENCE AND QUALIFICATIONS AND REPRESENT THE
ENGINEER'S BEST JUDGMENT. HOWEVER, THE ENGINEER CANNOT AND DOES NOT GUARANTEE THAT BIDS OR ACTUAL TOTAL PROJECT OR CONSTRUCTION COSTS WILL NOT VARY
FROM THE OPINION OF PROBABLE CONSTRUCTION COST. THIS OPINION IS INTENDED TO ASSIST IN BUDGETARY ASSESSMENT AND DOES NOT GUARANTEE THAT ACTUAL PROJECT
COSTS WILL NOT EXCEED OR BE LOWER THAN THE AMOUNTS STATED IN THIS OPINION.
City of Ames
Somerset Improvements - Stange Road
Engineer's Opinion of Probable Construction Costs - Alternative A
January 29, 2026
CONSTRUCTION SUBTOTAL
CONTINGENCY (20%)
TOTAL
8
ITEM NO. ITEM UNIT QUANTITY UNIT PRICE DIVISION I COST
1 Clearing and Grubbing LS 1 * 5,000.00$ =5,000.00$
2 Topsoil LS 1 * 5,000.00$ =5,000.00$
3 Excavation, Class 10 LS 1 * 10,000.00$ =10,000.00$
4 Subgrade Preparation SY 586 * 7.50$ =4,395.00$
5 Subbase, Modified SY 586 * 15.00$ =8,790.00$
6 Compaction Testing LS 1 * 4,500.00$ =4,500.00$
7 Storm Sewer, Trenched, RCP, 15 in. LF 12 * 90.00$ =1,080.00$
8 Storm Sewer, Trenched, RCP, 30 in. LF * 150.00$ =-$
9 Storm Sewer, Trenched, RCP, 36 in. LF * 180.00$ =-$
10 Removal of Storm Sewer, Any Type, Any Size LF * 30.00$ =-$
11 Subdrain, Perforated, 4 in. LF 536 * 20.00$ =10,720.00$
12 Subdrain Cleanout, Riser, 6 in. EA 6 * 1,100.00$ =6,600.00$
13 Subdrain Outlets and Connections, Intake, 4 in. EA 5 * 275.00$ =1,375.00$
14 Valve Box Extension EA 8 * 750.00$ =6,000.00$
15 Manhole, SW-401, 48 in. EA * 6,000.00$ =-$
16 Intake, SW-501 EA * 5,000.00$ =-$
17 Intake, SW-505 EA 1 * 8,000.00$ =8,000.00$
18 Manhole Adjustment, Minor EA 1 * 1,750.00$ =1,750.00$
19 Remove Intake EA * 1,000.00$ =-$
20 Pavement, PCC, 9 in. SY 411 * 75.00$ =30,825.00$
21 Removal of Sidewalk SY 286 * 15.00$ =4,290.00$
22 Shared Use Path, PCC, 6 in. SY * 75.00$ =-$
23 Special Subgrade Preparation for Shared Use Path SY * 10.00$ =-$
24 Sidewalk, PCC, 6 in. SY 740 * 75.00$ =55,500.00$
25 Detectable Warning SF 220 * 60.00$ =13,200.00$
26 Driveway, Paved, PCC, 8 in. SY * 85.00$ =-$
27 Pavement Removal SY 860 * 10.00$ =8,600.00$
28 Painted Pavement Markings, High-Build STA 66.1 * 30.00$ =1,983.00$
29 Precut Symbols and Legends, Thermoplastic EA 6 * 525.00$ =3,150.00$
30 Pavement Markings Removed STA 20.5 * 70.00$ =1,435.00$
31 Grooves Cut for Pavement Markings STA 66.1 * 30.00$ =1,983.00$
32 Grooves Cut for Symbols and Legends EA 6 * 225.00$ =1,350.00$
33 Temporary Traffic Control LS 1 * 30,000.00$ =30,000.00$
34 Traffic Sign, Type A Assembly EA 20 * 250.00$ =5,000.00$
35 Remove and Salvage Traffic Sign Assembly EA 10 * 110.00$ =1,100.00$
36 Watering MGAL 5 * 75.00$ =375.00$
37 Sod SY 225 * 7.50$ =1,687.50$
38 SWPPP Preparation LS 1 * 7,500.00$ =7,500.00$
39 SWPPP Management LS 1 * 4,000.00$ =4,000.00$
40 Filter Sock, 9 in. LF 750 * 2.50$ =1,875.00$
41 Filter Socks, Removal LF 750 * 0.50$ =375.00$
42 Inlet Protection Device, Grate EA 11 * 125.00$ =1,375.00$
43 Inlet Protection Device, Maintenance EA 11 * 25.00$ =275.00$
44 Construction Survey LS 1 * 15,000.00$ =15,000.00$
45 Mobilization LS 1 * 15,000.00$ =15,000.00$
46 Concrete Washout LS 1 * 5,000.00$ =5,000.00$
47 Remove Light Pole and Footing EA * 500.00$ =-$
48 Light Pole Footing EA * 2,000.00$ =-$
49 RRFB LS 2 * 20,000.00$ =40,000.00$
$324,089
$64,800
$388,889
City of Ames
Somerset Improvements - Stange Road
Engineer's Opinion of Probable Construction Costs - Alternative B
January 29, 2026
CONSTRUCTION SUBTOTAL
CONTINGENCY (20%)
TOTAL
**TOTAL PROJECT COSTS AND CONSTRUCTION COSTS PROVIDED HEREIN ARE MADE ON THE BASIS OF ENGINEER'S EXPERIENCE AND QUALIFICATIONS AND REPRESENT THE
ENGINEER'S BEST JUDGMENT. HOWEVER, THE ENGINEER CANNOT AND DOES NOT GUARANTEE THAT BIDS OR ACTUAL TOTAL PROJECT OR CONSTRUCTION COSTS WILL NOT VARY
FROM THE OPINION OF PROBABLE CONSTRUCTION COST. THIS OPINION IS INTENDED TO ASSIST IN BUDGETARY ASSESSMENT AND DOES NOT GUARANTEE THAT ACTUAL PROJECT
COSTS WILL NOT EXCEED OR BE LOWER THAN THE AMOUNTS STATED IN THIS OPINION.
9
Project 2250013040
AMENDMENT TO AGREEMENT
between SHIVE-HATTERY, INC. AND THE CLIENT
ATTN: Mark Gansen
CLIENT: City of Ames, IA
515 Clark Avenue
PO Box 811
Ames, IA 50010
PROJECT: City of Ames - Somerset Improvements Strange Road
PROJECT LOCATION: Ames, IA
ORIGINAL AGREEMENT DATE: September 23, 2025
AMENDMENT NO.: 1
AMENDMENT DATE: February 05,2026
OVERVIEW
The original Professional Services Agreement is being amended to include additional services, based
on a revised project concept. Additional communication, meetings, and design scope of services have
been added for alternate project limits based on new concept. An exhibit of the alternative concept is
attached.
City of Ames and Shive-Hattery, Inc. (S-H) agree to amend the Original Agreement as follows:
SCOPE OF SERVICES
Tasks to be included for the Amended Scope of Services are as follows:
1. Conceptual design of one (1) alternative for Stange Road and the business access drive in the
Somerset Area to present to the business’ owners and City Council.
2. Design for the realignment of the business access drive entrances onto Stange Road.
3. Intersection modifications and median adjustments to align through lanes of Stange Road
across Aspen Road and Northridge Parkway.
4. Street light modifications for relocation needed due to driveway realignment and intersection
modifications. Corridor lighting layout and photometric assessment are not anticipated.
5. Design of a multi-use trail from Northridge Parkway to Aspen Road.
6. Restriping of business access drive, and the Northridge Parkway and Aspen Road
intersections.
7. Drainage analysis of the site, including review of the flooding issues near the southern side of
the business access drive. Full storm sewer replacement and design is not anticipated.
8. Extended survey for extended project limits.
10
Page 2 of 4
Project 2250013040 | February 05, 2026
Design and Construction Documents
2. Check and Final Design and Plans
a. Sheets to be included:
i. M Sheets – Storm Sewer Sheets (as necessary)
ii. P Sheets – Lighting Sheets (as necessary)
Public Participation and Involvement
3. Concept Consideration Meeting – The CONSULTANT and CITY shall participate in a meeting
with business and property owners impacted by the project to present the original and new
alternative concepts.
a. Prepare exhibits necessary to convey project design, options, and gather feedback. The
development of additional alternatives is not anticipated.
b. Document meeting minutes and comments received for the CITY’s use at a city council
meeting.
COMPENSATION
Description Fee Type Fee Total
Amendment Scope of Services Hourly w/ Max $27,000 $27,000
Fee Types:
• Hourly w/ Max - We will provide the Scope of Services on an hourly rate basis at our standard
Hourly Fee Schedule in effect at the time that the services are performed. We will not exceed
the estimated amounts above without your prior authorization.
Expenses:
• Included - For Fixed Fee Type, expenses have been included in the Fee amount. For Hourly
Fee Types, expenses will be reimbursed in accordance with our Reimbursable Expense Fee
Schedule in effect at the time that the expense is incurred.
EXHIBITS
Somerset Improvements – Stange Road Project Alternative Concept
11
Page 3 of 4
Project 2250013040 | February 05, 2026
AGREEMENT
When accepted by both parties, this Amendment will amend the Original Agreement and is subject to all
other terms and conditions of the Original Agreement. Original, facsimile, electronic signatures or other
electronic acceptance by the parties (and returned to Shive-Hattery) are deemed acceptable for binding
the parties to the Amendment. The Client representative signing this Amendment warrants that he or
she is authorized to enter into this Amendment on behalf of the Client.
Sincerely,
SHIVE-HATTERY, INC.
Victoria Watts, PE, Market Leader
vwatts@shive-hattery.com
AMENDMENT ACCEPTED AND SERVICES AUTHORIZED TO PROCEED
CLIENT: City of Ames, IA
BY: TITLE:
(signature)
PRINTED NAME: DATE ACCEPTED:
12
Page 4 of 4
Project 2250013040 | February 05, 2026
ATTACHMENT 1 –
Somerset Improvements – Stange Road Alternative Concept - Concept below was provided by the
CONSULTANT in the Request for Proposals.
13