US Bridges

4628C/ E1250 over Mill Creek

FairPosted for load

McIntosh County, Oklahoma · 3.3 W of Hanna · Structure no. 068560000000000

Built
1939
86 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

4628C/ E1250 over Mill Creek is a concrete continuous slab carrying 4628C/ E1250 over Mill Creek in McIntosh County, Oklahoma. It was built in 1939, so it is 86 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 50 vehicles a day, roughly 15% of them trucks, projected to reach 80 by 2042. The structure is 24 ft (7.3 m) long and 26 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Carries4628C/ E1250
CrossesMill Creek
Location3.3 W of Hanna
RouteCounty Highway 4628C
Coordinates35.20284, -95.95336
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating22 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 4628C/ E1250 over Mill Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is 4628C/ E1250 over Mill 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 August 2024.

How much traffic does 4628C/ E1250 over Mill Creek carry?

About 50 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 4628C/ E1250 over Mill Creek?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns 4628C/ E1250 over Mill Creek?

It is owned by the County Highway Agency.