US Bridges

S.H. 43 over Muddy Boggy Creek Oflow

Fair

Coal County, Oklahoma · 1.5 MI E US75 · Structure no. 136710000000000

Built
1956
69 years old, rebuilt 2019
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
202 ft
5 main spans
Daily traffic
1,100
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 43 over Muddy Boggy Creek Oflow is a steel stringer/multi-beam or girder carrying S.H. 43 over Muddy Boggy Creek Oflow in Coal County, Oklahoma. It was built in 1956 and reconstructed in 2019, so it is 69 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 1,100 vehicles a day, roughly 15% of them trucks, projected to reach 1,760 by 2042. The structure is 202 ft (61.6 m) long and 32 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesS.H. 43
CrossesMuddy Boggy Creek Oflow
Location1.5 MI E US75
RouteState Highway 43
CountyCoal County
StateOklahoma
Coordinates34.53251, -96.19176
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length202 ft (61.6 m)
Longest span40 ft (12.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic1,760 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$2.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 43 over Muddy Boggy Creek Oflow built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2019.

What condition is S.H. 43 over Muddy Boggy Creek Oflow 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 October 2024.

How much traffic does S.H. 43 over Muddy Boggy Creek Oflow carry?

About 1,100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 43 over Muddy Boggy Creek Oflow?

The structure is 202 ft (61.6 m) long with a longest span of 40 ft (12.2 m) and a deck 32 ft wide.

Who owns S.H. 43 over Muddy Boggy Creek Oflow?

It is owned by the State Highway Agency.