US Bridges

906th RD over Ponca Creek

Good

Boyd County, Nebraska · 3W of Anoka · Structure no. C000800805P

Built
2021
4 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
112 ft
3 main spans
Daily traffic
15
2003 count
Owner
County
County Highway Agency

About this bridge

906th RD over Ponca Creek is a concrete continuous slab carrying 906th 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 15 vehicles a day, projected to reach 18 by 2033. The structure is 112 ft (34.1 m) long and 30 ft wide. If it were closed, the detour would be 99.4 mi (160 km).

Carries906th RD
CrossesPonca Creek
Location3W of Anoka
RouteCounty Highway 108
Coordinates42.95513, -98.89536
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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
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 alignment8: Equal to present desirable criteria
Operating rating60.6 US tons
Inventory rating47.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length112 ft (34.1 m)
Longest span44 ft (13.4 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2003)
Projected traffic18 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed99.4 mi (160 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 906th RD over Ponca Creek built?

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

What condition is 906th 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 September 2023.

How much traffic does 906th RD over Ponca Creek carry?

About 15 vehicles per day (2003 count).

How long is 906th RD over Ponca Creek?

The structure is 112 ft (34.1 m) long with a longest span of 44 ft (13.4 m) and a deck 30 ft wide.

Who owns 906th RD over Ponca Creek?

It is owned by the County Highway Agency.