US Bridges

C43 555th ST over Branch Raccoon River

Good

Buena Vista County, Iowa · 091361003 · Structure no. 000000000084891

Built
2016
9 years old
Condition
Good
inspected June 2023
Type
Slab
Concrete Continuous
Length
141 ft
3 main spans
Daily traffic
100
2021 count
Owner
County
County Highway Agency

About this bridge

C43 555th ST over Branch Raccoon River is a concrete continuous slab carrying C43 555th ST over Branch Raccoon River in Buena Vista County, Iowa. It was built in 2016, so it is 9 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 100 vehicles a day, roughly 16% of them trucks, projected to reach 100 by 2043. The structure is 141 ft (43 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesC43 555th ST
CrossesBranch Raccoon River
Location091361003
RouteCounty Highway 0
StateIowa
Coordinates42.71258, -95.07815
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 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 rating62.5 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length141 ft (43 m)
Longest span55 ft (16.8 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2021)
Projected traffic100 by 2043
Trucks16%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was C43 555th ST over Branch Raccoon River built?

It was built in 2016, making it 9 years old in 2025.

What condition is C43 555th ST over Branch Raccoon 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 June 2023.

How much traffic does C43 555th ST over Branch Raccoon River carry?

About 100 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is C43 555th ST over Branch Raccoon River?

The structure is 141 ft (43 m) long with a longest span of 55 ft (16.8 m) and a deck 33 ft wide.

Who owns C43 555th ST over Branch Raccoon River?

It is owned by the County Highway Agency.