US Bridges

E1680 over Irrigation Canal

PoorPosted for load

Jackson County, Oklahoma · 283 &62 4.0 S &0.4 W · Structure no. 077300000000000

Built
1940
85 years old
Condition
Poor
inspected June 2024
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

E1680 over Irrigation Canal is a concrete slab carrying E1680 over Irrigation Canal in Jackson County, Oklahoma. It was built in 1940, so it is 85 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 22 ft (6.7 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesE1680
CrossesIrrigation Canal
Location283 &62 4.0 S &0.4 W
RouteCounty Highway E1680
CountyJackson County
StateOklahoma
Coordinates34.57974, -99.34079
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating20 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width20 ft (6 m)
Roadway width18 ft (5.5 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 closed3.7 mi (6 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E1680 over Irrigation Canal built?

It was built in 1940, making it 85 years old in 2025.

What condition is E1680 over Irrigation Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does E1680 over Irrigation Canal carry?

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

How long is E1680 over Irrigation Canal?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 20 ft wide.

Who owns E1680 over Irrigation Canal?

It is owned by the County Highway Agency.