US Bridges

Coll 7578 over Spring Creek

Good

Thayer County, Nebraska · 5.7N 1.2 Byron · Structure no. C008503805

Built
1983
42 years old
Condition
Good
inspected December 2023
Type
Tee Beam
Prestressed Concrete
Length
75 ft
3 main spans
Daily traffic
40
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7578 over Spring Creek is a prestressed concrete tee beam carrying Coll 7578 over Spring Creek in Thayer County, Nebraska. It was built in 1983, so it is 42 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 40 vehicles a day, projected to reach 40 by 2033. The structure is 75 ft (22.9 m) long and 30 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesColl 7578
CrossesSpring Creek
Location5.7N 1.2 Byron
RouteCounty Highway 7578
CountyThayer County
StateNebraska
Coordinates40.0883, -97.7433
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.5 US tons
Inventory rating41.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length75 ft (22.9 m)
Longest span26 ft (7.9 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (1998)
Projected traffic40 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 7578 over Spring Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Coll 7578 over Spring 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 December 2023.

How much traffic does Coll 7578 over Spring Creek carry?

About 40 vehicles per day (1998 count).

How long is Coll 7578 over Spring Creek?

The structure is 75 ft (22.9 m) long with a longest span of 26 ft (7.9 m) and a deck 30 ft wide.

Who owns Coll 7578 over Spring Creek?

It is owned by the County Highway Agency.