US Bridges

NW 2nd ST over Four Mile Creek Tributar

Good

Polk County, Iowa · 081241402 · Structure no. 000000000282941

Built
1995
30 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
46
2022 count
Owner
County
County Highway Agency

About this bridge

NW 2nd ST over Four Mile Creek Tributar is a concrete continuous culvert carrying NW 2nd ST over Four Mile Creek Tributar in Polk County, Iowa. It was built in 1995, so it is 30 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 46 vehicles a day, roughly 9% of them trucks, projected to reach 46 by 2042. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNW 2nd ST
CrossesFour Mile Creek Tributar
Location081241402
RouteCounty Highway 0
StateIowa
Coordinates41.82986, -93.61966
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46 (2022)
Projected traffic46 by 2042
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 NW 2nd ST over Four Mile Creek Tributar built?

It was built in 1995, making it 30 years old in 2025.

What condition is NW 2nd ST over Four Mile Creek Tributar in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does NW 2nd ST over Four Mile Creek Tributar carry?

About 46 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is NW 2nd ST over Four Mile Creek Tributar?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m).

Who owns NW 2nd ST over Four Mile Creek Tributar?

It is owned by the County Highway Agency.