US Bridges

Mills Civic Pkw over I-35

Good

Polk County, Iowa · 2.3 Mi. S of Jct. I-235 · Structure no. 000000000012411

Built
2001
24 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
184 ft
2 main spans
Daily traffic
15,163
2022 count
Owner
State
State Highway Agency

About this bridge

Mills Civic Pkw over I-35 is a prestressed concrete stringer/multi-beam or girder carrying Mills Civic Pkw over I-35 in Polk County, Iowa. It was built in 2001, so it is 24 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,163 vehicles a day, roughly 1% of them trucks, projected to reach 15,163 by 2042. The structure is 184 ft (56.1 m) long and 199 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMills Civic Pkw
CrossesI-35
Location2.3 Mi. S of Jct. I-235
RouteCity Street 0
StateIowa
Coordinates41.55907, -93.77693
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.8 US tons
Inventory rating35.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length184 ft (56.1 m)
Longest span91 ft (27.7 m)
Deck width199 ft (60.7 m)
Roadway width112 ft (34.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,163 (2022)
Projected traffic15,163 by 2042
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mills Civic Pkw over I-35 built?

It was built in 2001, making it 24 years old in 2025.

What condition is Mills Civic Pkw over I-35 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Mills Civic Pkw over I-35 carry?

About 15,163 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Mills Civic Pkw over I-35?

The structure is 184 ft (56.1 m) long with a longest span of 91 ft (27.7 m) and a deck 199 ft wide.

Who owns Mills Civic Pkw over I-35?

It is owned by the State Highway Agency.