US Bridges

S3837;STRK Dam Ctf over Middle Line Canal

Good

Elmore County, Idaho · At Strike Dam · Structure no. 000000000027835

Built
1959
66 years old, rebuilt 2021
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
350
2023 count
Owner
Local
Other Local Agency

About this bridge

S3837;STRK Dam Ctf over Middle Line Canal is a steel stringer/multi-beam or girder carrying S3837;STRK Dam Ctf over Middle Line Canal in Elmore County, Idaho. It was built in 1959 and reconstructed in 2021, so it is 66 years old, older than the Idaho average of 45.3 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 350 vehicles a day, projected to reach 525 by 2042. The structure is 25 ft (7.7 m) long and 35 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesS3837;STRK Dam Ctf
CrossesMiddle Line Canal
LocationAt Strike Dam
RouteCounty Highway 3837
CountyElmore County
StateIdaho
Coordinates42.95056, -115.97575
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length25 ft (7.7 m)
Longest span24 ft (7.4 m)
Deck width35 ft (10.8 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2023)
Projected traffic525 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S3837;STRK Dam Ctf over Middle Line Canal built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2021.

What condition is S3837;STRK Dam Ctf over Middle Line Canal 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 February 2023.

How much traffic does S3837;STRK Dam Ctf over Middle Line Canal carry?

About 350 vehicles per day (2023 count).

How long is S3837;STRK Dam Ctf over Middle Line Canal?

The structure is 25 ft (7.7 m) long with a longest span of 24 ft (7.4 m) and a deck 35 ft wide.

Who owns S3837;STRK Dam Ctf over Middle Line Canal?

It is owned by the Other Local Agency.