US Bridges

US 34 & Ia 25 over Branch Platte River

Fair

Union County, Iowa · 1.0 Mi. E of W JCT Ia 25 · Structure no. 000000000050011

Built
1973
52 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
3,730
2022 count
Owner
State
State Highway Agency

About this bridge

US 34 & Ia 25 over Branch Platte River is a concrete continuous culvert carrying US 34 & Ia 25 over Branch Platte River in Union County, Iowa. It was built in 1973, so it is 52 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,730 vehicles a day, roughly 17% of them trucks, projected to reach 3,730 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 37.3 mi (60 km).

Location

Open in Google Maps
CarriesUS 34 & Ia 25
CrossesBranch Platte River
Location1.0 Mi. E of W JCT Ia 25
RouteU.S. Route 34
CountyUnion County
StateIowa
Coordinates40.97907, -94.4513
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating67 US tons
Inventory rating40.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 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 traffic3,730 (2022)
Projected traffic3,730 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US 34 & Ia 25 over Branch Platte River built?

It was built in 1973, making it 52 years old in 2025.

What condition is US 34 & Ia 25 over Branch Platte River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does US 34 & Ia 25 over Branch Platte River carry?

About 3,730 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is US 34 & Ia 25 over Branch Platte River?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns US 34 & Ia 25 over Branch Platte River?

It is owned by the State Highway Agency.