US Bridges

28th RD over Cow Creek

Good

Thurston County, Nebraska · JCT US77/N94 .7W 1.6S · Structure no. C008713515P

Built
2017
8 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
1 main span
Daily traffic
110
2011 count
Owner
County
County Highway Agency

About this bridge

28th RD over Cow Creek is a steel stringer/multi-beam or girder carrying 28th RD over Cow Creek in Thurston County, Nebraska. It was built in 2017, so it is 8 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 110 vehicles a day, projected to reach 110 by 2033. The structure is 70 ft (21.3 m) long and 29 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Carries28th RD
CrossesCow Creek
LocationJCT US77/N94 .7W 1.6S
RouteCounty Highway 3905
Coordinates42.12495, -96.49076
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.3 US tons
Inventory rating36.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length70 ft (21.3 m)
Longest span69 ft (20.9 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2011)
Projected traffic110 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 28th RD over Cow Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is 28th RD over Cow 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 October 2024.

How much traffic does 28th RD over Cow Creek carry?

About 110 vehicles per day (2011 count).

How long is 28th RD over Cow Creek?

The structure is 70 ft (21.3 m) long with a longest span of 69 ft (20.9 m) and a deck 29 ft wide.

Who owns 28th RD over Cow Creek?

It is owned by the County Highway Agency.