US Bridges

NE 134th Ave over Drainage Ditch #4

Good

Polk County, Iowa · 081223005 · Structure no. 000000000282561

Built
2000
25 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
792
2022 count
Owner
County
County Highway Agency

About this bridge

NE 134th Ave over Drainage Ditch #4 is a concrete culvert carrying NE 134th Ave over Drainage Ditch #4 in Polk County, Iowa. It was built in 2000, so it is 25 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 792 vehicles a day, roughly 10% of them trucks, projected to reach 792 by 2044. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNE 134th Ave
CrossesDrainage Ditch #4
Location081223005
RouteCounty Highway 0
StateIowa
Coordinates41.80553, -93.44845
Functional classRural Major Collector

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.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.5 US tons
Inventory rating29 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length38 ft (11.6 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 traffic792 (2022)
Projected traffic792 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 NE 134th Ave over Drainage Ditch #4 built?

It was built in 2000, making it 25 years old in 2025.

What condition is NE 134th Ave over Drainage Ditch #4 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 134th Ave over Drainage Ditch #4 carry?

About 792 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is NE 134th Ave over Drainage Ditch #4?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns NE 134th Ave over Drainage Ditch #4?

It is owned by the County Highway Agency.