US Bridges

E1680 over Coalgate Reservoir Arm

Good

Coal County, Oklahoma · 2.7N. & 1.9W. of Coalgate · Structure no. 282680000000000

Built
2006
19 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

E1680 over Coalgate Reservoir Arm is a prestressed concrete tee beam carrying E1680 over Coalgate Reservoir Arm in Coal County, Oklahoma. It was built in 2006, so it is 19 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 51 ft (15.4 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesE1680
CrossesCoalgate Reservoir Arm
Location2.7N. & 1.9W. of Coalgate
RouteCounty Highway E1680
Coordinates34.57841, -96.24912
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length51 ft (15.4 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$294,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E1680 over Coalgate Reservoir Arm built?

It was built in 2006, making it 19 years old in 2025.

What condition is E1680 over Coalgate Reservoir Arm 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 January 2024.

How much traffic does E1680 over Coalgate Reservoir Arm carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is E1680 over Coalgate Reservoir Arm?

The structure is 51 ft (15.4 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns E1680 over Coalgate Reservoir Arm?

It is owned by the County Highway Agency.