US Bridges

410th Ave over South Branch Elk River

Good

Clinton County, Iowa · 410th Ave S of 140th St. · Structure no. 000000000125862

Built
2023
2 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
62
2022 count
Owner
County
County Highway Agency

About this bridge

410th Ave over South Branch Elk River is a steel stringer/multi-beam or girder carrying 410th Ave over South Branch Elk River in Clinton County, Iowa. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 62 vehicles a day, projected to reach 62 by 2044. The structure is 62 ft (18.9 m) long and 31 ft wide.

Location

Open in Google Maps
Carries410th Ave
CrossesSouth Branch Elk River
Location410th Ave S of 140th St.
RouteCounty Highway 0
CountyClinton County
StateIowa
Coordinates41.97197, -90.29635
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating50.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length62 ft (18.9 m)
Longest span58 ft (17.6 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62 (2022)
Projected traffic62 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 410th Ave over South Branch Elk River built?

It was built in 2023, making it 2 years old in 2025.

What condition is 410th Ave over South Branch Elk River 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 August 2024.

How much traffic does 410th Ave over South Branch Elk River carry?

About 62 vehicles per day (2022 count).

How long is 410th Ave over South Branch Elk River?

The structure is 62 ft (18.9 m) long with a longest span of 58 ft (17.6 m) and a deck 31 ft wide.

Who owns 410th Ave over South Branch Elk River?

It is owned by the County Highway Agency.