US Bridges

U.S. 277 over Slwc R.R. under

Fair

Caddo County, Oklahoma · .7N & .8E JCT US277/SH19 · Structure no. 242320000000000

Built
1995
30 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
199 ft
3 main spans
Daily traffic
1,900
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 277 over Slwc R.R. under is a prestressed concrete stringer/multi-beam or girder carrying U.S. 277 over Slwc R.R. under in Caddo County, Oklahoma. It was built in 1995, so it is 30 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,900 vehicles a day, roughly 15% of them trucks, projected to reach 3,040 by 2042. The structure is 199 ft (60.7 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesU.S. 277
CrossesSlwc R.R. under
Location.7N & .8E JCT US277/SH19
RouteU.S. Route 277
CountyCaddo County
StateOklahoma
Coordinates34.91599, -98.17583
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length199 ft (60.7 m)
Longest span67 ft (20.4 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2022)
Projected traffic3,040 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 277 over Slwc R.R. under built?

It was built in 1995, making it 30 years old in 2025.

What condition is U.S. 277 over Slwc R.R. under in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does U.S. 277 over Slwc R.R. under carry?

About 1,900 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is U.S. 277 over Slwc R.R. under?

The structure is 199 ft (60.7 m) long with a longest span of 67 ft (20.4 m) and a deck 42 ft wide.

Who owns U.S. 277 over Slwc R.R. under?

It is owned by the State Highway Agency.