US Bridges

E1440 over Negro Creek

FairPosted for load

Seminole County, Oklahoma · 2.4 S & .3 E of Konawa · Structure no. 100300000000000

Built
1943
82 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
22 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

E1440 over Negro Creek is a steel stringer/multi-beam or girder carrying E1440 over Negro Creek in Seminole County, Oklahoma. It was built in 1943, so it is 82 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. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 22 ft (6.7 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesE1440
CrossesNegro Creek
Location2.4 S & .3 E of Konawa
RouteCounty Highway E1440
CountySeminole County
StateOklahoma
Coordinates34.92706, -96.74592
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span18 ft (5.5 m)
Deck width19 ft (5.9 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E1440 over Negro Creek built?

It was built in 1943, making it 82 years old in 2025.

What condition is E1440 over Negro Creek 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 June 2023.

How much traffic does E1440 over Negro Creek carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is E1440 over Negro Creek?

The structure is 22 ft (6.7 m) long with a longest span of 18 ft (5.5 m) and a deck 19 ft wide.

Who owns E1440 over Negro Creek?

It is owned by the County Highway Agency.