US Bridges

STC4783;DENT Br RD over Elk Creek

Good

Clearwater County, Idaho · 1.5 S. 0.4 E. Elk River · Structure no. 000000000020301

Built
2003
22 years old
Condition
Good
inspected June 2023
Type
Tee Beam
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
190
2023 count
Owner
Local
Other Local Agency

About this bridge

STC4783;DENT Br RD over Elk Creek is a prestressed concrete tee beam carrying STC4783;DENT Br RD over Elk Creek in Clearwater County, Idaho. It was built in 2003, so it is 22 years old, younger 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 190 vehicles a day, roughly 6% of them trucks, projected to reach 285 by 2042. The structure is 57 ft (17.4 m) long and 28 ft wide. If it were closed, the detour would be 93.8 mi (151 km).

CarriesSTC4783;DENT Br RD
CrossesElk Creek
Location1.5 S. 0.4 E. Elk River
RouteCounty Highway 4783
StateIdaho
Coordinates46.75961, -116.17119
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length57 ft (17.4 m)
Longest span54 ft (16.5 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2023)
Projected traffic285 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed93.8 mi (151 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 STC4783;DENT Br RD over Elk Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is STC4783;DENT Br RD over Elk Creek 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 June 2023.

How much traffic does STC4783;DENT Br RD over Elk Creek carry?

About 190 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is STC4783;DENT Br RD over Elk Creek?

The structure is 57 ft (17.4 m) long with a longest span of 54 ft (16.5 m) and a deck 28 ft wide.

Who owns STC4783;DENT Br RD over Elk Creek?

It is owned by the Other Local Agency.