US Bridges

SH 3 over Evans Creek

Good

Kootenai County, Idaho · 9.1 S. Rose Lake · Structure no. 000000000010131

Built
1994
31 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
1,900
2023 count
Owner
State
State Highway Agency

About this bridge

SH 3 over Evans Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 3 over Evans Creek in Kootenai County, Idaho. It was built in 1994, so it is 31 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,900 vehicles a day, roughly 17% of them trucks, projected to reach 2,850 by 2042. The structure is 79 ft (24.1 m) long and 36 ft wide. If it were closed, the detour would be 23 mi (37 km).

CarriesSH 3
CrossesEvans Creek
Location9.1 S. Rose Lake
RouteState Highway 3
StateIdaho
Coordinates47.45858, -116.58164
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: 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 rating69 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length79 ft (24.1 m)
Longest span77 ft (23.5 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2023)
Projected traffic2,850 by 2042
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 3 over Evans Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is SH 3 over Evans Creek 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 July 2023.

How much traffic does SH 3 over Evans Creek carry?

About 1,900 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is SH 3 over Evans Creek?

The structure is 79 ft (24.1 m) long with a longest span of 77 ft (23.5 m) and a deck 36 ft wide.

Who owns SH 3 over Evans Creek?

It is owned by the State Highway Agency.