US Bridges

County Highway over Blackbird Creek

Good

Holt County, Nebraska · 11.3N Oneill · Structure no. C004536315

Built
1997
28 years old
Condition
Good
inspected September 2022
Type
Tee Beam
Prestressed Concrete
Length
93 ft
3 main spans
Daily traffic
25
2003 count
Owner
County
County Highway Agency

About this bridge

County Highway over Blackbird Creek is a prestressed concrete tee beam carrying County Highway over Blackbird Creek in Holt County, Nebraska. It was built in 1997, so it is 28 years old, younger than the Nebraska average of 47.1 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 25 vehicles a day, projected to reach 31 by 2033. The structure is 93 ft (28.3 m) long and 30 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Location

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CarriesCounty Highway
CrossesBlackbird Creek
Location11.3N Oneill
RouteCounty Highway 363
CountyHolt County
StateNebraska
Coordinates42.6283, -98.6383
Functional classRural Local

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 protection9 ExcellentNo problems noted.
Last inspectionSeptember 2022
Inspection intervalevery 48 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating37.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length93 ft (28.3 m)
Longest span31 ft (9.4 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2003)
Projected traffic31 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 County Highway over Blackbird Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is County Highway over Blackbird Creek 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 September 2022.

How much traffic does County Highway over Blackbird Creek carry?

About 25 vehicles per day (2003 count).

How long is County Highway over Blackbird Creek?

The structure is 93 ft (28.3 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns County Highway over Blackbird Creek?

It is owned by the County Highway Agency.