US Bridges

Private Road over Mores Creek

Good

Boise County, Idaho · 6.2 S. 5.2 W. Idaho City · Structure no. 000000000034095

Built
1985
40 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
15
2023 count
Owner
State
State Highway Agency

About this bridge

Private Road over Mores Creek is a prestressed concrete box beam or girders - multiple carrying Private Road over Mores Creek in Boise County, Idaho. It was built in 1985, so it is 40 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 15 vehicles a day, projected to reach 23 by 2039. The structure is 50 ft (15.2 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesPrivate Road
CrossesMores Creek
Location6.2 S. 5.2 W. Idaho City
CountyBoise County
StateIdaho
Coordinates43.73294, -115.93967
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating16 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width20 ft (6.1 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2023)
Projected traffic23 by 2039
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$99,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Private Road over Mores Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Private Road over Mores 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 October 2024.

How much traffic does Private Road over Mores Creek carry?

About 15 vehicles per day (2023 count).

How long is Private Road over Mores Creek?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 20 ft wide.

Who owns Private Road over Mores Creek?

It is owned by the State Highway Agency.