US Bridges

NW 54th Ave over Drainage District #1

Good

Polk County, Iowa · 0107924 · Structure no. 000000000365740

Built
2011
14 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
974
2023 count
Owner
County
County Highway Agency

About this bridge

NW 54th Ave over Drainage District #1 is a concrete continuous culvert carrying NW 54th Ave over Drainage District #1 in Polk County, Iowa. It was built in 2011, so it is 14 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 974 vehicles a day, roughly 29% of them trucks, projected to reach 974 by 2043. The structure is 38 ft (11.5 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNW 54th Ave
CrossesDrainage District #1
Location0107924
RouteCounty Highway 0
CountyPolk County
StateIowa
Coordinates41.65854, -93.63493
Functional classUrban Minor Arterial

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length38 ft (11.5 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 traffic974 (2023)
Projected traffic974 by 2043
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NW 54th Ave over Drainage District #1 built?

It was built in 2011, making it 14 years old in 2025.

What condition is NW 54th Ave over Drainage District #1 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 2023.

How much traffic does NW 54th Ave over Drainage District #1 carry?

About 974 vehicles per day (2023 count), of which roughly 29% are trucks.

How long is NW 54th Ave over Drainage District #1?

The structure is 38 ft (11.5 m) long with a longest span of 12 ft (3.7 m).

Who owns NW 54th Ave over Drainage District #1?

It is owned by the County Highway Agency.