US Bridges

NB-US77 over N Fork Rock Creek

Fair

Saunders County, Nebraska · 1S Swedeburg · Structure no. S077 08606R

Built
2001
24 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
7,945
2018 count
Owner
State
State Highway Agency

About this bridge

NB-US77 over N Fork Rock Creek is a prestressed concrete stringer/multi-beam or girder carrying NB-US77 over N Fork Rock Creek in Saunders County, Nebraska. It was built in 2001, so it is 24 years old, younger 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 6 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 7,945 vehicles a day, roughly 13% of them trucks, projected to reach 12,712 by 2038. The structure is 81 ft (24.7 m) long and 41 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

Open in Google Maps
CarriesNB-US77
CrossesN Fork Rock Creek
Location1S Swedeburg
RouteU.S. Route 77
CountySaunders County
StateNebraska
Coordinates41.1162, -96.6297
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating60.6 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length81 ft (24.7 m)
Longest span79 ft (24.1 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,945 (2018)
Projected traffic12,712 by 2038
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 NB-US77 over N Fork Rock Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is NB-US77 over N Fork Rock Creek 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 June 2024.

How much traffic does NB-US77 over N Fork Rock Creek carry?

About 7,945 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is NB-US77 over N Fork Rock Creek?

The structure is 81 ft (24.7 m) long with a longest span of 79 ft (24.1 m) and a deck 41 ft wide.

Who owns NB-US77 over N Fork Rock Creek?

It is owned by the State Highway Agency.