US Bridges

E1956 over Turkey Creek

FairPosted for load

Johnston County, Oklahoma · 1.5 E .5 S of Mannsville · Structure no. 094780000000000

Built
1940
85 years old
Condition
Fair
inspected July 2023
Type
Truss - Thru
Steel
Length
148 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

E1956 over Turkey Creek is a steel truss - thru carrying E1956 over Turkey Creek in Johnston County, Oklahoma. It was built in 1940, so it is 85 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 148 ft (45.1 m) long and 19 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesE1956
CrossesTurkey Creek
Location1.5 E .5 S of Mannsville
RouteCounty Highway E1956
CountyJohnston County
StateOklahoma
Coordinates34.17803, -96.8561
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.8 US tons
Inventory rating23.1 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length148 ft (45.1 m)
Longest span147 ft (44.7 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deck14 ft (4.4 m)

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$670,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E1956 over Turkey Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is E1956 over Turkey 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 July 2023.

How much traffic does E1956 over Turkey Creek carry?

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

How long is E1956 over Turkey Creek?

The structure is 148 ft (45.1 m) long with a longest span of 147 ft (44.7 m) and a deck 19 ft wide.

Who owns E1956 over Turkey Creek?

It is owned by the County Highway Agency.