US Bridges

370th ST over Elk Creek

Good

Crawford County, Iowa · 082372202 · Structure no. 000000000126242

Built
2016
9 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
82
2022 count
Owner
County
County Highway Agency

About this bridge

370th ST over Elk Creek is a concrete continuous culvert carrying 370th ST over Elk Creek in Crawford County, Iowa. It was built in 2016, so it is 9 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 82 vehicles a day, projected to reach 82 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Carries370th ST
CrossesElk Creek
Location082372202
RouteCounty Highway 0
StateIowa
Coordinates41.9042, -95.15091
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating41.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length29 ft (8.8 m)
Longest span14 ft (4.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82 (2022)
Projected traffic82 by 2043
Trucks0%
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 370th ST over Elk Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is 370th ST over Elk 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 370th ST over Elk Creek carry?

About 82 vehicles per day (2022 count).

How long is 370th ST over Elk Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.2 m).

Who owns 370th ST over Elk Creek?

It is owned by the County Highway Agency.