US Bridges

Ia 92 over Clear Creek

Fair

Keokuk County, Iowa · 2.4 Mi. W of JCT SR W15 · Structure no. 000000000032760

Built
1967
58 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
175 ft
3 main spans
Daily traffic
1,690
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 92 over Clear Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 92 over Clear Creek in Keokuk County, Iowa. It was built in 1967, so it is 58 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 6 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 1,690 vehicles a day, roughly 20% of them trucks, projected to reach 1,690 by 2043. The structure is 175 ft (53.3 m) long and 35 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesIa 92
CrossesClear Creek
Location2.4 Mi. W of JCT SR W15
RouteState Highway 92
CountyKeokuk County
StateIowa
Coordinates41.33738, -92.01339
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating28.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length175 ft (53.3 m)
Longest span69 ft (21 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,690 (2023)
Projected traffic1,690 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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 Clear Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Ia 92 over Clear 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 Clear Creek carry?

About 1,690 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is Ia 92 over Clear Creek?

The structure is 175 ft (53.3 m) long with a longest span of 69 ft (21 m) and a deck 35 ft wide.

Who owns Ia 92 over Clear Creek?

It is owned by the State Highway Agency.