US Bridges

E0630 (0110C) over Illinois River

Fair

Adair County, Oklahoma · 4S .8E of NW C/L · Structure no. 136820000000000

Built
1956
69 years old, rebuilt 2014
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
463 ft
6 main spans
Daily traffic
350
2022 count
Owner
County
County Highway Agency

About this bridge

E0630 (0110C) over Illinois River is a steel continuous stringer/multi-beam or girder carrying E0630 (0110C) over Illinois River in Adair County, Oklahoma. It was built in 1956 and reconstructed in 2014, so it is 69 years old, older 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 350 vehicles a day, roughly 15% of them trucks, projected to reach 560 by 2042. The structure is 463 ft (141.1 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesE0630 (0110C)
CrossesIllinois River
Location4S .8E of NW C/L
RouteCounty Highway E0630
CountyAdair County
StateOklahoma
Coordinates36.10442, -94.78377
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.1 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length463 ft (141.1 m)
Longest span86 ft (26.2 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2022)
Projected traffic560 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was E0630 (0110C) over Illinois River built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2014.

What condition is E0630 (0110C) over Illinois River 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 July 2023.

How much traffic does E0630 (0110C) over Illinois River carry?

About 350 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is E0630 (0110C) over Illinois River?

The structure is 463 ft (141.1 m) long with a longest span of 86 ft (26.2 m) and a deck 28 ft wide.

Who owns E0630 (0110C) over Illinois River?

It is owned by the County Highway Agency.