US Bridges

NE 142nd Ave over Skunk River Tributary

Good

Polk County, Iowa · 081232401 · Structure no. 000000000282811

Built
1992
33 years old
Condition
Good
inspected September 2024
Type
Culvert
Steel
Length
52 ft
6 main spans
Daily traffic
5
2022 count
Owner
County
County Highway Agency

About this bridge

NE 142nd Ave over Skunk River Tributary is a steel culvert carrying NE 142nd Ave over Skunk River Tributary in Polk County, Iowa. It was built in 1992, so it is 33 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 5 vehicles a day, projected to reach 5 by 2044. The structure is 52 ft (15.9 m) long. If it were closed, the detour would be 123 mi (198 km).

CarriesNE 142nd Ave
CrossesSkunk River Tributary
Location081232401
RouteCounty Highway 0
StateIowa
Coordinates41.81995, -93.46768
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 inspectionSeptember 2024
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 rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans6
Design loadHS 20
Structure length52 ft (15.9 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2022)
Projected traffic5 by 2044
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

OwnerCounty Highway Agency
Maintained byCounty 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 NE 142nd Ave over Skunk River Tributary built?

It was built in 1992, making it 33 years old in 2025.

What condition is NE 142nd Ave over Skunk River Tributary 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 September 2024.

How much traffic does NE 142nd Ave over Skunk River Tributary carry?

About 5 vehicles per day (2022 count).

How long is NE 142nd Ave over Skunk River Tributary?

The structure is 52 ft (15.9 m) long with a longest span of 7 ft (2.1 m).

Who owns NE 142nd Ave over Skunk River Tributary?

It is owned by the County Highway Agency.