US Bridges

U.S. 77 S-W Ramp over Kilpatrick Tp/U.S. 77UND

Good

Oklahoma County, Oklahoma · 130.99 · Structure no. 229520000000000

Built
1991
34 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
926 ft
8 main spans
Daily traffic
3,000
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

U.S. 77 S-W Ramp over Kilpatrick Tp/U.S. 77UND is a steel continuous stringer/multi-beam or girder carrying U.S. 77 S-W Ramp over Kilpatrick Tp/U.S. 77UND in Oklahoma County, Oklahoma. It was built in 1991, so it is 34 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 3,000 vehicles a day, roughly 8% of them trucks, projected to reach 4,800 by 2042. The structure is 926 ft (282.2 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesU.S. 77 S-W Ramp
CrossesKilpatrick Tp/U.S. 77UND
Location130.99
CountyOklahoma County
StateOklahoma
Coordinates35.59893, -97.5019
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.3 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadH 15
Structure length926 ft (282.2 m)
Longest span125 ft (38.1 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2022)
Projected traffic4,800 by 2042
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$11.3 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. 77 S-W Ramp over Kilpatrick Tp/U.S. 77UND built?

It was built in 1991, making it 34 years old in 2025.

What condition is U.S. 77 S-W Ramp over Kilpatrick Tp/U.S. 77UND 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 S-W Ramp over Kilpatrick Tp/U.S. 77UND carry?

About 3,000 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is U.S. 77 S-W Ramp over Kilpatrick Tp/U.S. 77UND?

The structure is 926 ft (282.2 m) long with a longest span of 125 ft (38.1 m) and a deck 30 ft wide.

Who owns U.S. 77 S-W Ramp over Kilpatrick Tp/U.S. 77UND?

It is owned by the State Toll Authority.