US Bridges

NE 36th over Otter Creek

Good

Polk County, Iowa · 080230700 · Structure no. 000000000361980

Built
1982
43 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
6,694
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

NE 36th over Otter Creek is a concrete continuous culvert carrying NE 36th over Otter Creek in Polk County, Iowa. It was built in 1982, so it is 43 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 6,694 vehicles a day, roughly 1% of them trucks, projected to reach 6,694 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesNE 36th
CrossesOtter Creek
Location080230700
RouteCity Street 0
StateIowa
Coordinates41.76083, -93.5742
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 rating75.2 US tons
Inventory rating45.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,694 (2022)
Projected traffic6,694 by 2042
Trucks1%
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

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 NE 36th over Otter Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is NE 36th over Otter Creek 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 NE 36th over Otter Creek carry?

About 6,694 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is NE 36th over Otter Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns NE 36th over Otter Creek?

It is owned by the City or Municipal Highway Agency.