US Bridges

Washington ST over Davids Creek

Fair

Audubon County, Iowa · 000000000 · Structure no. 000000000004680

Built
1959
66 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
127 ft
3 main spans
Daily traffic
1,987
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Washington ST over Davids Creek is a concrete continuous slab carrying Washington ST over Davids Creek in Audubon County, Iowa. It was built in 1959, so it is 66 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 1,987 vehicles a day, roughly 6% of them trucks, projected to reach 1,987 by 2044. The structure is 127 ft (38.7 m) long and 36 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesWashington ST
CrossesDavids Creek
Location000000000
RouteCity Street 0
StateIowa
Coordinates41.59109, -94.88414
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.2 US tons
Inventory rating34.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length127 ft (38.7 m)
Longest span51 ft (15.5 m)
Deck width36 ft (11.1 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,987 (2022)
Projected traffic1,987 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Washington ST over Davids Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Washington ST over Davids 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 April 2024.

How much traffic does Washington ST over Davids Creek carry?

About 1,987 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Washington ST over Davids Creek?

The structure is 127 ft (38.7 m) long with a longest span of 51 ft (15.5 m) and a deck 36 ft wide.

Who owns Washington ST over Davids Creek?

It is owned by the City or Municipal Highway Agency.