US Bridges

Ia 92 over Cedar Creek

Fair

Keokuk County, Iowa · 2.4 Mi. E of Jct. Ia 21 · Structure no. 000000000032710

Built
1964
61 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
183 ft
3 main spans
Daily traffic
1,840
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 92 over Cedar Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 92 over Cedar Creek in Keokuk County, Iowa. It was built in 1964, so it is 61 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,840 vehicles a day, roughly 16% of them trucks, projected to reach 1,840 by 2043. The structure is 183 ft (55.8 m) long and 36 ft wide. If it were closed, the detour would be 46 mi (74 km).

Location

Open in Google Maps
CarriesIa 92
CrossesCedar Creek
Location2.4 Mi. E of Jct. Ia 21
RouteState Highway 92
CountyKeokuk County
StateIowa
Coordinates41.33649, -92.30874
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length183 ft (55.8 m)
Longest span69 ft (21 m)
Deck width36 ft (11 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,840 (2023)
Projected traffic1,840 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed46 mi (74 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 92 over Cedar Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Ia 92 over Cedar Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Ia 92 over Cedar Creek carry?

About 1,840 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Ia 92 over Cedar Creek?

The structure is 183 ft (55.8 m) long with a longest span of 69 ft (21 m) and a deck 36 ft wide.

Who owns Ia 92 over Cedar Creek?

It is owned by the State Highway Agency.