US Bridges

Ia 5 over South Cedar Creek

Good

Marion County, Iowa · 3.0 Mi. S of S.R. G-71 · Structure no. 000000000035121

Built
1983
42 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
411 ft
5 main spans
Daily traffic
3,340
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 5 over South Cedar Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 5 over South Cedar Creek in Marion County, Iowa. It was built in 1983, so it is 42 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 3,340 vehicles a day, roughly 16% of them trucks, projected to reach 3,340 by 2043. The structure is 411 ft (125.3 m) long and 43 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesIa 5
CrossesSouth Cedar Creek
Location3.0 Mi. S of S.R. G-71
RouteState Highway 5
StateIowa
Coordinates41.18581, -92.93224
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.5 US tons
Inventory rating56.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length411 ft (125.3 m)
Longest span82 ft (25 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,340 (2022)
Projected traffic3,340 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 5 over South Cedar Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Ia 5 over South Cedar Creek 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 July 2023.

How much traffic does Ia 5 over South Cedar Creek carry?

About 3,340 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Ia 5 over South Cedar Creek?

The structure is 411 ft (125.3 m) long with a longest span of 82 ft (25 m) and a deck 43 ft wide.

Who owns Ia 5 over South Cedar Creek?

It is owned by the State Highway Agency.