US Bridges

IRR E0470 over Black Bear Creek

Good

Pawnee County, Oklahoma · 0.1 Miles East of US HWY · Structure no. 59E0470N3480003

Built
2012
13 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
195 ft
3 main spans
Daily traffic
350
2021 count
Owner
Tribal
Indian Tribal Government

About this bridge

IRR E0470 over Black Bear Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR E0470 over Black Bear Creek in Pawnee County, Oklahoma. It was built in 2012, so it is 13 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 350 vehicles a day, projected to reach 420 by 2041. The structure is 195 ft (59.4 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIRR E0470
CrossesBlack Bear Creek
Location0.1 Miles East of US HWY
RouteFederal Lands Road 470
Coordinates36.33333, -96.79461
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length195 ft (59.4 m)
Longest span75 ft (22.9 m)
Deck width42 ft (12.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2021)
Projected traffic420 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerIndian Tribal Government
Maintained byIndian Tribal Government
Historic statusEligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IRR E0470 over Black Bear Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is IRR E0470 over Black Bear 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 June 2023.

How much traffic does IRR E0470 over Black Bear Creek carry?

About 350 vehicles per day (2021 count).

How long is IRR E0470 over Black Bear Creek?

The structure is 195 ft (59.4 m) long with a longest span of 75 ft (22.9 m) and a deck 42 ft wide.

Who owns IRR E0470 over Black Bear Creek?

It is owned by the Indian Tribal Government.