US Bridges

C25 (480th St) over Branch of Maple

Good

Buena Vista County, Iowa · 092380601 · Structure no. 000000000085886

Built
2014
11 years old
Condition
Good
inspected June 2022
Type
Culvert
Concrete
Length
33 ft
2 main spans
Daily traffic
90
2022 count
Owner
County
County Highway Agency

About this bridge

C25 (480th St) over Branch of Maple is a concrete culvert carrying C25 (480th St) over Branch of Maple in Buena Vista County, Iowa. It was built in 2014, so it is 11 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 90 vehicles a day, roughly 19% of them trucks, projected to reach 90 by 2043. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesC25 (480th St)
CrossesBranch of Maple
Location092380601
RouteCounty Highway 0
CountyBuena Vista County
StateIowa
Coordinates42.82187, -95.38477
Functional classRural Minor Collector

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 inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length33 ft (10.1 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2022)
Projected traffic90 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C25 (480th St) over Branch of Maple built?

It was built in 2014, making it 11 years old in 2025.

What condition is C25 (480th St) over Branch of Maple 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 June 2022.

How much traffic does C25 (480th St) over Branch of Maple carry?

About 90 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is C25 (480th St) over Branch of Maple?

The structure is 33 ft (10.1 m) long with a longest span of 16 ft (4.9 m).

Who owns C25 (480th St) over Branch of Maple?

It is owned by the County Highway Agency.