US Bridges

Stc 3809;MIDDLE Fk over Queens River No. 2

Poor

Elmore County, Idaho · 4.0 N. 4.0 W. Atlanta · Structure no. 000000000027990

Built
1962
63 years old
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
63 ft
1 main span
Daily traffic
30
2023 count
Owner
Local
Other Local Agency

About this bridge

Stc 3809;MIDDLE Fk over Queens River No. 2 is a steel truss - thru carrying Stc 3809;MIDDLE Fk over Queens River No. 2 in Elmore County, Idaho. It was built in 1962, so it is 63 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 30 vehicles a day, projected to reach 45 by 2042. The structure is 63 ft (19.2 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesStc 3809;MIDDLE Fk
CrossesQueens River No. 2
Location4.0 N. 4.0 W. Atlanta
RouteCounty Highway 3809
CountyElmore County
StateIdaho
Coordinates43.82117, -115.20778
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating56 US tons
Inventory rating33 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width20 ft (6.1 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic45 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$647,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stc 3809;MIDDLE Fk over Queens River No. 2 built?

It was built in 1962, making it 63 years old in 2025.

What condition is Stc 3809;MIDDLE Fk over Queens River No. 2 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Stc 3809;MIDDLE Fk over Queens River No. 2 carry?

About 30 vehicles per day (2023 count).

How long is Stc 3809;MIDDLE Fk over Queens River No. 2?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 20 ft wide.

Who owns Stc 3809;MIDDLE Fk over Queens River No. 2?

It is owned by the Other Local Agency.