US Bridges

Ia 92 over South Long Creek

Fair

Washington County, Iowa · 4.6 Mi. W of Jct. US 218 · Structure no. 000000000051820

Built
1967
58 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
5,900
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 92 over South Long Creek is a concrete continuous slab carrying Ia 92 over South Long Creek in Washington 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 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 5,900 vehicles a day, roughly 6% of them trucks, projected to reach 5,900 by 2044. The structure is 133 ft (40.5 m) long and 47 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesIa 92
CrossesSouth Long Creek
Location4.6 Mi. W of Jct. US 218
RouteState Highway 92
StateIowa
Coordinates41.29489, -91.62135
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69.2 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span51 ft (15.5 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2023)
Projected traffic5,900 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 South Long Creek built?

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

What condition is Ia 92 over South Long 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 November 2024.

How much traffic does Ia 92 over South Long Creek carry?

About 5,900 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Ia 92 over South Long Creek?

The structure is 133 ft (40.5 m) long with a longest span of 51 ft (15.5 m) and a deck 47 ft wide.

Who owns Ia 92 over South Long Creek?

It is owned by the State Highway Agency.