US Bridges

County Highway over W Fk Big Blue River

Fair

Fillmore County, Nebraska · 4E 4.3N Grafton · Structure no. C003002120

Built
1969
56 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
100 ft
3 main spans
Daily traffic
40
2003 count
Owner
County
County Highway Agency

About this bridge

County Highway over W Fk Big Blue River is a steel stringer/multi-beam or girder carrying County Highway over W Fk Big Blue River in Fillmore County, Nebraska. It was built in 1969, so it is 56 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 40 vehicles a day, projected to reach 68 by 2033. The structure is 100 ft (30.5 m) long and 27 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

Location

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CarriesCounty Highway
CrossesW Fk Big Blue River
Location4E 4.3N Grafton
RouteCounty Highway 21
CountyFillmore County
StateNebraska
Coordinates40.6967, -97.6333
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating45.2 US tons
Inventory rating26.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length100 ft (30.5 m)
Longest span50 ft (15.2 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2003)
Projected traffic68 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 Highway over W Fk Big Blue River built?

It was built in 1969, making it 56 years old in 2025.

What condition is County Highway over W Fk Big Blue 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 2024.

How much traffic does County Highway over W Fk Big Blue River carry?

About 40 vehicles per day (2003 count).

How long is County Highway over W Fk Big Blue River?

The structure is 100 ft (30.5 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.

Who owns County Highway over W Fk Big Blue River?

It is owned by the County Highway Agency.