US Bridges

3546C over Pennington Creek (e Fork

Fair

Johnston County, Oklahoma · 4 N & 1.3 E of Mill Creek · Structure no. 100860000000000

Built
1944
81 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
25 ft
2 main spans
Daily traffic
55
2022 count
Owner
County
County Highway Agency

About this bridge

3546C over Pennington Creek (e Fork is a concrete slab carrying 3546C over Pennington Creek (e Fork in Johnston County, Oklahoma. It was built in 1944, so it is 81 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 6 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 55 vehicles a day, roughly 10% of them trucks, projected to reach 88 by 2042. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
Carries3546C
CrossesPennington Creek (e Fork
Location4 N & 1.3 E of Mill Creek
RouteCounty Highway 3546C
CountyJohnston County
StateOklahoma
Coordinates34.46293, -96.80646
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length25 ft (7.6 m)
Longest span10 ft (3 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2022)
Projected traffic88 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$241,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 3546C over Pennington Creek (e Fork built?

It was built in 1944, making it 81 years old in 2025.

What condition is 3546C over Pennington Creek (e Fork 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 May 2023.

How much traffic does 3546C over Pennington Creek (e Fork carry?

About 55 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is 3546C over Pennington Creek (e Fork?

The structure is 25 ft (7.6 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns 3546C over Pennington Creek (e Fork?

It is owned by the County Highway Agency.