US Bridges

SH 8 over Big Meadow Creek

Fair

Latah County, Idaho · 0.2 E. Troy Cl · Structure no. 000000000010240

Built
1979
46 years old
Condition
Fair
inspected July 2023
Type
Culvert
Steel
Length
26 ft
1 main span
Daily traffic
2,900
2023 count
Owner
State
State Highway Agency

About this bridge

SH 8 over Big Meadow Creek is a steel culvert carrying SH 8 over Big Meadow Creek in Latah 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 5 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 2,900 vehicles a day, roughly 6% of them trucks, projected to reach 4,350 by 2042. The structure is 26 ft (7.9 m) long and 103 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

Location

Open in Google Maps
CarriesSH 8
CrossesBig Meadow Creek
Location0.2 E. Troy Cl
RouteState Highway 8
CountyLatah County
StateIdaho
Coordinates46.73317, -116.75667
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width103 ft (31.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2023)
Projected traffic4,350 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed32.9 mi (53 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway 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 SH 8 over Big Meadow Creek built?

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

What condition is SH 8 over Big Meadow Creek 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 2023.

How much traffic does SH 8 over Big Meadow Creek carry?

About 2,900 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SH 8 over Big Meadow Creek?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 103 ft wide.

Who owns SH 8 over Big Meadow Creek?

It is owned by the State Highway Agency.