US Bridges

904th RD over Ponca Creek

Good

Boyd County, Nebraska · 1SE of Anoka · Structure no. C000831210

Built
2021
4 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
10
2003 count
Owner
County
County Highway Agency

About this bridge

904th RD over Ponca Creek is a concrete continuous slab carrying 904th RD over Ponca Creek in Boyd County, Nebraska. It was built in 2021, so it is 4 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 10 vehicles a day, projected to reach 12 by 2033. The structure is 122 ft (37.2 m) long and 31 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

Carries904th RD
CrossesPonca Creek
Location1SE of Anoka
RouteCounty Highway 112
Coordinates42.9305, -98.8018
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating49.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length122 ft (37.2 m)
Longest span48 ft (14.6 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2003)
Projected traffic12 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 904th RD over Ponca Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is 904th RD 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 March 2024.

How much traffic does 904th RD over Ponca Creek carry?

About 10 vehicles per day (2003 count).

How long is 904th RD over Ponca Creek?

The structure is 122 ft (37.2 m) long with a longest span of 48 ft (14.6 m) and a deck 31 ft wide.

Who owns 904th RD over Ponca Creek?

It is owned by the County Highway Agency.