US Bridges

477th Ave over Ponca Creek

Good

Boyd County, Nebraska · Wjct N11/N12 5W 3.4N · Structure no. C000803110

Built
1980
45 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
134 ft
3 main spans
Daily traffic
30
2011 count
Owner
County
County Highway Agency

About this bridge

477th Ave over Ponca Creek is a prestressed concrete tee beam carrying 477th Ave over Ponca Creek in Boyd County, Nebraska. It was built in 1980, so it is 45 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 30 vehicles a day, projected to reach 35 by 2033. The structure is 134 ft (40.8 m) long and 30 ft wide. If it were closed, the detour would be 80.8 mi (130 km).

Carries477th Ave
CrossesPonca Creek
LocationWjct N11/N12 5W 3.4N
RouteCounty Highway 2135
Coordinates42.9648, -98.9589
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.4 US tons
Inventory rating25.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length134 ft (40.8 m)
Longest span45 ft (13.7 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2011)
Projected traffic35 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed80.8 mi (130 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 477th Ave over Ponca Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is 477th Ave over Ponca 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 2024.

How much traffic does 477th Ave over Ponca Creek carry?

About 30 vehicles per day (2011 count).

How long is 477th Ave over Ponca Creek?

The structure is 134 ft (40.8 m) long with a longest span of 45 ft (13.7 m) and a deck 30 ft wide.

Who owns 477th Ave over Ponca Creek?

It is owned by the County Highway Agency.