US Bridges

State ST over Apple Creek

Fair

Linn County, Iowa · State Street · Structure no. 000000000503791

Built
1989
36 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
39 ft
1 main span
Daily traffic
232
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

State ST over Apple Creek is a concrete slab carrying State ST over Apple Creek in Linn County, Iowa. It was built in 1989, so it is 36 years old, younger 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 232 vehicles a day, projected to reach 232 by 2043. The structure is 39 ft (11.9 m) long and 33 ft wide.

Location

Open in Google Maps
CarriesState ST
CrossesApple Creek
LocationState Street
RouteCity Street 0
CountyLinn County
StateIowa
Coordinates42.19154, -91.78345
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
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 alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span36 ft (11 m)
Deck width33 ft (10.1 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic232 (2021)
Projected traffic232 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 State ST over Apple Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is State ST over Apple 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 March 2023.

How much traffic does State ST over Apple Creek carry?

About 232 vehicles per day (2021 count).

How long is State ST over Apple Creek?

The structure is 39 ft (11.9 m) long with a longest span of 36 ft (11 m) and a deck 33 ft wide.

Who owns State ST over Apple Creek?

It is owned by the City or Municipal Highway Agency.