US Bridges

U.S. 77 NB over 108th St. (hefner) under

Good

Oklahoma County, Oklahoma · 3.5MI. N. I-44 · Structure no. 286270000000000

Built
2001
24 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
294 ft
3 main spans
Daily traffic
41,250
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 77 NB over 108th St. (hefner) under is a prestressed concrete stringer/multi-beam or girder carrying U.S. 77 NB over 108th St. (hefner) under in Oklahoma County, Oklahoma. It was built in 2001, so it is 24 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 41,250 vehicles a day, roughly 8% of them trucks, projected to reach 66,000 by 2042. The structure is 294 ft (89.5 m) long and 63 ft wide.

Location

Open in Google Maps
CarriesU.S. 77 NB
Crosses108th St. (hefner) under
Location3.5MI. N. I-44
RouteState Highway 77
CountyOklahoma County
StateOklahoma
Coordinates35.57969, -97.51374
Functional classUrban Other Principal Arterial

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.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length294 ft (89.5 m)
Longest span102 ft (31 m)
Deck width63 ft (19.1 m)
Roadway width59 ft (18.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,250 (2022)
Projected traffic66,000 by 2042
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$7.4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. 77 NB over 108th St. (hefner) under built?

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

What condition is U.S. 77 NB over 108th St. (hefner) under 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 2023.

How much traffic does U.S. 77 NB over 108th St. (hefner) under carry?

About 41,250 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is U.S. 77 NB over 108th St. (hefner) under?

The structure is 294 ft (89.5 m) long with a longest span of 102 ft (31 m) and a deck 63 ft wide.

Who owns U.S. 77 NB over 108th St. (hefner) under?

It is owned by the State Highway Agency.