US Bridges

STC2715;4100 N. RD over Cedar Draw

Fair

Twin Falls County, Idaho · 2.0 N. 0.8 W. Filer · Structure no. 000000000019375

Built
1932
93 years old, rebuilt 2019
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
34 ft
1 main span
Daily traffic
2,700
2023 count
Owner
Local
Other Local Agency

About this bridge

STC2715;4100 N. RD over Cedar Draw is a concrete stringer/multi-beam or girder carrying STC2715;4100 N. RD over Cedar Draw in Twin Falls County, Idaho. It was built in 1932 and reconstructed in 2019, so it is 93 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 2,700 vehicles a day, roughly 8% of them trucks, projected to reach 4,050 by 2042. The structure is 34 ft (10.4 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSTC2715;4100 N. RD
CrossesCedar Draw
Location2.0 N. 0.8 W. Filer
RouteCounty Highway 2715
CountyTwin Falls County
StateIdaho
Coordinates42.59356, -114.6315
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 protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width38 ft (11.5 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2023)
Projected traffic4,050 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$599,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was STC2715;4100 N. RD over Cedar Draw built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 2019.

What condition is STC2715;4100 N. RD over Cedar Draw 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 February 2023.

How much traffic does STC2715;4100 N. RD over Cedar Draw carry?

About 2,700 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is STC2715;4100 N. RD over Cedar Draw?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 38 ft wide.

Who owns STC2715;4100 N. RD over Cedar Draw?

It is owned by the Other Local Agency.