US Bridges

Stc 6768; S2000W over Reid Canal

Fair

Madison County, Idaho · 1.3 E. 2.7 S. Thornton · Structure no. 000000000020970

Built
1960
65 years old
Condition
Fair
inspected April 2023
Type
Frame
Concrete
Length
33 ft
1 main span
Daily traffic
2,000
2023 count
Owner
County
County Highway Agency

About this bridge

Stc 6768; S2000W over Reid Canal is a concrete frame carrying Stc 6768; S2000W over Reid Canal in Madison County, Idaho. It was built in 1960, so it is 65 years old, older than the Idaho average of 45.3 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 2,000 vehicles a day, roughly 19% of them trucks, projected to reach 3,000 by 2042. The structure is 33 ft (10.1 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesStc 6768; S2000W
CrossesReid Canal
Location1.3 E. 2.7 S. Thornton
RouteCounty Highway 6768
CountyMadison County
StateIdaho
Coordinates43.71692, -111.8165
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span33 ft (10.1 m)
Deck width34 ft (10.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2023)
Projected traffic3,000 by 2042
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$599,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 6768; S2000W over Reid Canal built?

It was built in 1960, making it 65 years old in 2025.

What condition is Stc 6768; S2000W over Reid Canal 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 April 2023.

How much traffic does Stc 6768; S2000W over Reid Canal carry?

About 2,000 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is Stc 6768; S2000W over Reid Canal?

The structure is 33 ft (10.1 m) long with a longest span of 33 ft (10.1 m) and a deck 34 ft wide.

Who owns Stc 6768; S2000W over Reid Canal?

It is owned by the County Highway Agency.