US Bridges

U.S. 77 Ramp over U.S. 77 NB Ramp under

Good

Oklahoma County, Oklahoma · .5E of I235 · Structure no. 296200000000000

Built
2021
4 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
288 ft
2 main spans
Daily traffic
6,550
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 77 Ramp over U.S. 77 NB Ramp under is a steel continuous stringer/multi-beam or girder carrying U.S. 77 Ramp over U.S. 77 NB Ramp under in Oklahoma County, Oklahoma. It was built in 2021, so it is 4 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 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 6,550 vehicles a day, roughly 3% of them trucks, projected to reach 9,750 by 2042. The structure is 288 ft (87.9 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesU.S. 77 Ramp
CrossesU.S. 77 NB Ramp under
Location.5E of I235
RouteU.S. Route 77
CountyOklahoma County
StateOklahoma
Coordinates35.53, -97.50417
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length288 ft (87.9 m)
Longest span177 ft (53.9 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,550 (2022)
Projected traffic9,750 by 2042
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. 77 Ramp over U.S. 77 NB Ramp under built?

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

What condition is U.S. 77 Ramp over U.S. 77 NB Ramp 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 June 2023.

How much traffic does U.S. 77 Ramp over U.S. 77 NB Ramp under carry?

About 6,550 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is U.S. 77 Ramp over U.S. 77 NB Ramp under?

The structure is 288 ft (87.9 m) long with a longest span of 177 ft (53.9 m) and a deck 32 ft wide.

Who owns U.S. 77 Ramp over U.S. 77 NB Ramp under?

It is owned by the State Highway Agency.