US Bridges

County Road 770 over Wood River

Fair

Dawson County, Nebraska · 1S of Eddyville · Structure no. C002421020

Built
1935
90 years old
Condition
Fair
inspected November 2023
Type
Culvert
Steel
Length
27 ft
2 main spans
Daily traffic
10
2003 count
Owner
County
County Highway Agency

About this bridge

County Road 770 over Wood River is a steel culvert carrying County Road 770 over Wood River in Dawson County, Nebraska. It was built in 1935, so it is 90 years old, older than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 10 vehicles a day, projected to reach 17 by 2033. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 62.1 mi (100 km).

Location

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CarriesCounty Road 770
CrossesWood River
Location1S of Eddyville
RouteCounty Highway 210
CountyDawson County
StateNebraska
Coordinates40.99, -99.615
Functional classRural Local

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.3 US tons
Inventory rating73.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2003)
Projected traffic17 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 770 over Wood River built?

It was built in 1935, making it 90 years old in 2025.

What condition is County Road 770 over Wood 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 November 2023.

How much traffic does County Road 770 over Wood River carry?

About 10 vehicles per day (2003 count).

How long is County Road 770 over Wood River?

The structure is 27 ft (8.2 m) long with a longest span of 11 ft (3.4 m).

Who owns County Road 770 over Wood River?

It is owned by the County Highway Agency.