US Bridges

Manning Rd. over I-40 under

Fair

Canadian County, Oklahoma · 25.6 Mi. E. Caddo CO · Structure no. 167980000000000

Built
1966
59 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
242 ft
3 main spans
Daily traffic
120
2022 count
Owner
State
State Highway Agency

About this bridge

Manning Rd. over I-40 under is a steel continuous stringer/multi-beam or girder carrying Manning Rd. over I-40 under in Canadian County, Oklahoma. It was built in 1966, so it is 59 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 5 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 120 vehicles a day, roughly 10% of them trucks, projected to reach 192 by 2042. The structure is 242 ft (73.8 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesManning Rd.
CrossesI-40 under
Location25.6 Mi. E. Caddo CO
RouteCounty Highway N2880
CountyCanadian County
StateOklahoma
Coordinates35.50017, -97.86643
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadH 15
Structure length242 ft (73.8 m)
Longest span59 ft (18 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2022)
Projected traffic192 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Manning Rd. over I-40 under built?

It was built in 1966, making it 59 years old in 2025.

What condition is Manning Rd. over I-40 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 November 2024.

How much traffic does Manning Rd. over I-40 under carry?

About 120 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Manning Rd. over I-40 under?

The structure is 242 ft (73.8 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.

Who owns Manning Rd. over I-40 under?

It is owned by the State Highway Agency.