US Bridges

County Rd; FR 754 over ST Joe River;st Joe Br

Fair

Benewah County, Idaho · 1.0 N. 10.0 E. ST Maries · Structure no. 000000000030055

Built
1979
46 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
236 ft
1 main span
Daily traffic
240
2023 count
Owner
County
County Highway Agency

About this bridge

County Rd; FR 754 over ST Joe River;st Joe Br is a steel stringer/multi-beam or girder carrying County Rd; FR 754 over ST Joe River;st Joe Br in Benewah County, Idaho. It was built in 1979, so it is 46 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 240 vehicles a day, roughly 4% of them trucks, projected to reach 360 by 2042. The structure is 236 ft (71.9 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCounty Rd; FR 754
CrossesST Joe River;st Joe Br
Location1.0 N. 10.0 E. ST Maries
RouteCounty Highway 0
CountyBenewah County
StateIdaho
Coordinates47.31547, -116.3491
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
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 rating68 US tons
Inventory rating46.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length236 ft (71.9 m)
Longest span232 ft (70.7 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic240 (2023)
Projected traffic360 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was County Rd; FR 754 over ST Joe River;st Joe Br built?

It was built in 1979, making it 46 years old in 2025.

What condition is County Rd; FR 754 over ST Joe River;st Joe Br 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 September 2024.

How much traffic does County Rd; FR 754 over ST Joe River;st Joe Br carry?

About 240 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is County Rd; FR 754 over ST Joe River;st Joe Br?

The structure is 236 ft (71.9 m) long with a longest span of 232 ft (70.7 m) and a deck 28 ft wide.

Who owns County Rd; FR 754 over ST Joe River;st Joe Br?

It is owned by the County Highway Agency.