US Bridges

E1850 over Sanatag Creek

Good

Cotton County, Oklahoma · 3.75E Tillman CO;2 S OK5 · Structure no. 272190000000000

Built
2005
20 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

E1850 over Sanatag Creek is a prestressed concrete stringer/multi-beam or girder carrying E1850 over Sanatag Creek in Cotton County, Oklahoma. It was built in 2005, so it is 20 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 77 ft (23.6 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesE1850
CrossesSanatag Creek
Location3.75E Tillman CO;2 S OK5
RouteCounty Highway E1850
Coordinates34.33369, -98.59521
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.2 US tons
Inventory rating39.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length77 ft (23.6 m)
Longest span75 ft (22.9 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$459,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E1850 over Sanatag Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is E1850 over Sanatag 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 June 2023.

How much traffic does E1850 over Sanatag Creek carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is E1850 over Sanatag Creek?

The structure is 77 ft (23.6 m) long with a longest span of 75 ft (22.9 m) and a deck 29 ft wide.

Who owns E1850 over Sanatag Creek?

It is owned by the County Highway Agency.