US Bridges

STC5751;OLD HWY 95 over Sirr & Uprr;s.Athol Op

Poor

Kootenai County, Idaho · 1.5 S. Athol · Structure no. 000000000030520

Built
1929
96 years old
Condition
Poor
inspected October 2024
Type
Tee Beam
Concrete
Length
181 ft
6 main spans
Daily traffic
540
2023 count
Owner
Local
Other Local Agency

About this bridge

STC5751;OLD HWY 95 over Sirr & Uprr;s.Athol Op is a concrete tee beam carrying STC5751;OLD HWY 95 over Sirr & Uprr;s.Athol Op in Kootenai County, Idaho. It was built in 1929, so it is 96 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 540 vehicles a day, projected to reach 810 by 2042. The structure is 181 ft (55.2 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSTC5751;OLD HWY 95
CrossesSirr & Uprr;s.Athol Op
Location1.5 S. Athol
RouteCounty Highway 5751
CountyKootenai County
StateIdaho
Coordinates47.92825, -116.71417
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length181 ft (55.2 m)
Longest span37 ft (11.3 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic540 (2023)
Projected traffic810 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed6.2 mi (10 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$2.3 million (2019 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was STC5751;OLD HWY 95 over Sirr & Uprr;s.Athol Op built?

It was built in 1929, making it 96 years old in 2025.

What condition is STC5751;OLD HWY 95 over Sirr & Uprr;s.Athol Op 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 October 2024.

How much traffic does STC5751;OLD HWY 95 over Sirr & Uprr;s.Athol Op carry?

About 540 vehicles per day (2023 count).

How long is STC5751;OLD HWY 95 over Sirr & Uprr;s.Athol Op?

The structure is 181 ft (55.2 m) long with a longest span of 37 ft (11.3 m) and a deck 27 ft wide.

Who owns STC5751;OLD HWY 95 over Sirr & Uprr;s.Athol Op?

It is owned by the Other Local Agency.