US Bridges

C-02W over Volga River

Fair

Clayton County, Iowa · 009000510 · Structure no. 000000000502350

Built
1975
50 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
255 ft
3 main spans
Daily traffic
690
2022 count
Owner
County
County Highway Agency

About this bridge

C-02W over Volga River is a steel continuous stringer/multi-beam or girder carrying C-02W over Volga River in Clayton County, Iowa. It was built in 1975, so it is 50 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 690 vehicles a day, projected to reach 690 by 2044. The structure is 255 ft (77.7 m) long and 32 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesC-02W
CrossesVolga River
Location009000510
RouteCity Street 0
CountyClayton County
StateIowa
Coordinates42.80129, -91.53756
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.7 US tons
Inventory rating33.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length255 ft (77.7 m)
Longest span98 ft (29.9 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic690 (2022)
Projected traffic690 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C-02W over Volga River built?

It was built in 1975, making it 50 years old in 2025.

What condition is C-02W over Volga 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 December 2024.

How much traffic does C-02W over Volga River carry?

About 690 vehicles per day (2022 count).

How long is C-02W over Volga River?

The structure is 255 ft (77.7 m) long with a longest span of 98 ft (29.9 m) and a deck 32 ft wide.

Who owns C-02W over Volga River?

It is owned by the County Highway Agency.