US Bridges

Coll 7524 over Blackbird Creek

Good

Holt County, Nebraska · 6N Oneill · Structure no. C004544810

Built
1984
41 years old
Condition
Good
inspected September 2022
Type
Culvert
Steel
Length
25 ft
3 main spans
Daily traffic
25
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7524 over Blackbird Creek is a steel culvert carrying Coll 7524 over Blackbird Creek in Holt County, Nebraska. It was built in 1984, so it is 41 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 7 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 25 by 2033. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesColl 7524
CrossesBlackbird Creek
Location6N Oneill
RouteCounty Highway 7524
CountyHolt County
StateNebraska
Coordinates42.5517, -98.6533
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (1998)
Projected traffic25 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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 Coll 7524 over Blackbird Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Coll 7524 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 Coll 7524 over Blackbird Creek carry?

About 25 vehicles per day (1998 count).

How long is Coll 7524 over Blackbird Creek?

The structure is 25 ft (7.6 m) long with a longest span of 7 ft (2.1 m).

Who owns Coll 7524 over Blackbird Creek?

It is owned by the County Highway Agency.