US Bridges

E1620 over Turkey Creek

PoorPosted for load

Coal County, Oklahoma · 4N 0.3W of Centrahoma · Structure no. 059190000000000

Built
1938
87 years old, rebuilt 1960
Condition
Poor
inspected January 2024
Type
Slab
Concrete
Length
22 ft
2 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

E1620 over Turkey Creek is a concrete slab carrying E1620 over Turkey Creek in Coal County, Oklahoma. It was built in 1938 and reconstructed in 1960, so it is 87 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 22 ft (6.7 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesE1620
CrossesTurkey Creek
Location4N 0.3W of Centrahoma
RouteCounty Highway E1620
Coordinates34.66533, -96.35236
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being 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 rating5 US tons
Inventory rating3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E1620 over Turkey Creek built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1960.

What condition is E1620 over Turkey Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does E1620 over Turkey Creek carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is E1620 over Turkey Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns E1620 over Turkey Creek?

It is owned by the County Highway Agency.