US Bridges

Oak Creek DR NW over Drainage

Fair

Linn County, Iowa · 000000000 · Structure no. 000000000504315

Built
1993
32 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
40
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Oak Creek DR NW over Drainage is a concrete culvert carrying Oak Creek DR NW over Drainage in Linn County, Iowa. It was built in 1993, so it is 32 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 40 vehicles a day, projected to reach 40 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 123 mi (198 km).

Location

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CarriesOak Creek DR NW
CrossesDrainage
Location000000000
RouteCity Street 0
CountyLinn County
StateIowa
Coordinates42.02864, -91.71502
Functional classUrban 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2021)
Projected traffic40 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123 mi (198 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Oak Creek DR NW over Drainage built?

It was built in 1993, making it 32 years old in 2025.

What condition is Oak Creek DR NW over Drainage 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 2023.

How much traffic does Oak Creek DR NW over Drainage carry?

About 40 vehicles per day (2021 count).

How long is Oak Creek DR NW over Drainage?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns Oak Creek DR NW over Drainage?

It is owned by the City or Municipal Highway Agency.