US Bridges

125th St. over Elk River

Good

Clinton County, Iowa · 083E61705 · Structure no. 000000000125722

Built
2001
24 years old
Condition
Good
inspected March 2024
Type
Tee Beam
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

125th St. over Elk River is a prestressed concrete tee beam carrying 125th St. over Elk River in Clinton County, Iowa. It was built in 2001, so it is 24 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 11 vehicles a day, projected to reach 11 by 2044. The structure is 56 ft (17.1 m) long and 28 ft wide.

Carries125th St.
CrossesElk River
Location083E61705
RouteCounty Highway 0
StateIowa
Coordinates41.9973, -90.28067
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.8 US tons
Inventory rating39.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span55 ft (16.8 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 125th St. over Elk River built?

It was built in 2001, making it 24 years old in 2025.

What condition is 125th St. over 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 March 2024.

How much traffic does 125th St. over Elk River carry?

About 11 vehicles per day (2022 count).

How long is 125th St. over Elk River?

The structure is 56 ft (17.1 m) long with a longest span of 55 ft (16.8 m) and a deck 28 ft wide.

Who owns 125th St. over Elk River?

It is owned by the County Highway Agency.