US Bridges

C25 480th over Branch Maple River

Good

Cherokee County, Iowa · 092390201 · Structure no. 000000000108681

Built
2015
10 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
42 ft
1 main span
Daily traffic
90
2022 count
Owner
County
County Highway Agency

About this bridge

C25 480th over Branch Maple River is a concrete stringer/multi-beam or girder carrying C25 480th over Branch Maple River in Cherokee County, Iowa. It was built in 2015, so it is 10 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 7 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 42 ft (12.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesC25 480th
CrossesBranch Maple River
Location092390201
RouteCounty Highway 0
StateIowa
Coordinates42.82177, -95.417
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length42 ft (12.8 m)
Longest span41 ft (12.5 m)
Deck width31 ft (9.5 m)
Roadway width31 ft (9.5 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 closed1.9 mi (3 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$30,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C25 480th over Branch Maple River built?

It was built in 2015, making it 10 years old in 2025.

What condition is C25 480th over Branch Maple 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 2023.

How much traffic does C25 480th over Branch Maple River carry?

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

How long is C25 480th over Branch Maple River?

The structure is 42 ft (12.8 m) long with a longest span of 41 ft (12.5 m) and a deck 31 ft wide.

Who owns C25 480th over Branch Maple River?

It is owned by the County Highway Agency.