US Bridges

Mccoy Bridge RD over S.Fk.Boise River;ne.Pine

Fair

Elmore County, Idaho · 1.1 N. 0.1 E. Pine · Structure no. 000000000027765

Built
1954
71 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
184 ft
3 main spans
Daily traffic
70
2023 count
Owner
Local
Other Local Agency

About this bridge

Mccoy Bridge RD over S.Fk.Boise River;ne.Pine is a steel continuous stringer/multi-beam or girder carrying Mccoy Bridge RD over S.Fk.Boise River;ne.Pine in Elmore County, Idaho. It was built in 1954, so it is 71 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 70 vehicles a day, roughly 10% of them trucks, projected to reach 105 by 2039. The structure is 184 ft (56.1 m) long and 15 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMccoy Bridge RD
CrossesS.Fk.Boise River;ne.Pine
Location1.1 N. 0.1 E. Pine
RouteCounty Highway 0
CountyElmore County
StateIdaho
Coordinates43.49983, -115.31108
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating22 US tons
Inventory rating16 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans3
Design loadHS 20
Structure length184 ft (56.1 m)
Longest span70 ft (21.3 m)
Deck width15 ft (4.5 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic105 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mccoy Bridge RD over S.Fk.Boise River;ne.Pine built?

It was built in 1954, making it 71 years old in 2025.

What condition is Mccoy Bridge RD over S.Fk.Boise River;ne.Pine 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 July 2024.

How much traffic does Mccoy Bridge RD over S.Fk.Boise River;ne.Pine carry?

About 70 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Mccoy Bridge RD over S.Fk.Boise River;ne.Pine?

The structure is 184 ft (56.1 m) long with a longest span of 70 ft (21.3 m) and a deck 15 ft wide.

Who owns Mccoy Bridge RD over S.Fk.Boise River;ne.Pine?

It is owned by the Other Local Agency.