US Bridges

Ia 5 - Ramp C over I-35

Good

Polk County, Iowa · At Jct. I-35 · Structure no. 000000000608240

Built
2002
23 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
675 ft
5 main spans
Daily traffic
15,300
2021 count
Owner
State
State Highway Agency

About this bridge

Ia 5 - Ramp C over I-35 is a prestressed concrete stringer/multi-beam or girder carrying Ia 5 - Ramp C over I-35 in Polk County, Iowa. It was built in 2002, so it is 23 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 15,300 vehicles a day, roughly 5% of them trucks, projected to reach 15,300 by 2043. The structure is 675 ft (205.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 5 - Ramp C
CrossesI-35
LocationAt Jct. I-35
RouteState Highway 5
CountyPolk County
StateIowa
Coordinates41.52441, -93.77347
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating84 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length675 ft (205.7 m)
Longest span141 ft (43 m)
Deck width43 ft (13.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic15,300 (2021)
Projected traffic15,300 by 2043
Trucks5%
Lanes on structure2
Traffic directionOne-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 Ia 5 - Ramp C over I-35 built?

It was built in 2002, making it 23 years old in 2025.

What condition is Ia 5 - Ramp C 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 Ia 5 - Ramp C over I-35 carry?

About 15,300 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Ia 5 - Ramp C over I-35?

The structure is 675 ft (205.7 m) long with a longest span of 141 ft (43 m) and a deck 43 ft wide.

Who owns Ia 5 - Ramp C over I-35?

It is owned by the State Highway Agency.