US Bridges

Stc 3811; FH61 RD over S Fk Boise Rvr (pine Br)

Good

Elmore County, Idaho · 0.3 S Pine · Structure no. 000000000019886

Built
2018
7 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
185 ft
1 main span
Daily traffic
620
2023 count
Owner
Local
Other Local Agency

About this bridge

Stc 3811; FH61 RD over S Fk Boise Rvr (pine Br) is a steel stringer/multi-beam or girder carrying Stc 3811; FH61 RD over S Fk Boise Rvr (pine Br) in Elmore County, Idaho. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 620 vehicles a day, roughly 2% of them trucks, projected to reach 930 by 2042. The structure is 185 ft (56.4 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesStc 3811; FH61 RD
CrossesS Fk Boise Rvr (pine Br)
Location0.3 S Pine
RouteCounty Highway 3811
CountyElmore County
StateIdaho
Coordinates43.48411, -115.30697
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length185 ft (56.4 m)
Longest span183 ft (55.8 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic620 (2023)
Projected traffic930 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Stc 3811; FH61 RD over S Fk Boise Rvr (pine Br) built?

It was built in 2018, making it 7 years old in 2025.

What condition is Stc 3811; FH61 RD over S Fk Boise Rvr (pine Br) 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 November 2024.

How much traffic does Stc 3811; FH61 RD over S Fk Boise Rvr (pine Br) carry?

About 620 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Stc 3811; FH61 RD over S Fk Boise Rvr (pine Br)?

The structure is 185 ft (56.4 m) long with a longest span of 183 ft (55.8 m) and a deck 38 ft wide.

Who owns Stc 3811; FH61 RD over S Fk Boise Rvr (pine Br)?

It is owned by the Other Local Agency.