US Bridges

S.H. 37 over Coal Creek

Good

Grady County, Oklahoma · 5.9 MI E SH92 · Structure no. 249280000000000

Built
1997
28 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
12,100
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 37 over Coal Creek is a concrete culvert carrying S.H. 37 over Coal Creek in Grady County, Oklahoma. It was built in 1997, so it is 28 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,100 vehicles a day, roughly 15% of them trucks, projected to reach 19,360 by 2042. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 47.2 mi (76 km).

Location

Open in Google Maps
CarriesS.H. 37
CrossesCoal Creek
Location5.9 MI E SH92
RouteState Highway 37
CountyGrady County
StateOklahoma
Coordinates35.29119, -97.71139
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,100 (2022)
Projected traffic19,360 by 2042
Trucks15%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed47.2 mi (76 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 37 over Coal Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is S.H. 37 over Coal Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does S.H. 37 over Coal Creek carry?

About 12,100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 37 over Coal Creek?

The structure is 40 ft (12.2 m) long with a longest span of 14 ft (4.3 m).

Who owns S.H. 37 over Coal Creek?

It is owned by the State Highway Agency.