US Bridges

Road 20012 over Logan River

Poor

Cache County, Utah · 12 M NE of Logan V Rt 89 · Structure no. 041907000001006

Built
1968
57 years old, rebuilt 2000
Condition
Poor
inspected September 2024
Type
Box Beam or Girders - Multiple
Steel
Length
88 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Road 20012 over Logan River is a steel box beam or girders - multiple carrying Road 20012 over Logan River in Cache County, Utah. It was built in 1968 and reconstructed in 2000, so it is 57 years old, older than the Utah average of 40.1 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 50 vehicles a day, projected to reach 75 by 2045. The structure is 88 ft (26.8 m) long and 27 ft wide.

Location

Open in Google Maps
CarriesRoad 20012
CrossesLogan River
Location12 M NE of Logan V Rt 89
RouteFederal Lands Road 20012
CountyCache County
StateUtah
Coordinates41.79655, -111.64512
Functional classRural Local

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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.8 US tons
Inventory rating16.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel
DeckWood or timber
Main spans1 (+2 approach)
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span52 ft (15.8 m)
Deck width27 ft (8.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road 20012 over Logan River built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2000.

What condition is Road 20012 over Logan River 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 Road 20012 over Logan River carry?

About 50 vehicles per day (latest count).

How long is Road 20012 over Logan River?

The structure is 88 ft (26.8 m) long with a longest span of 52 ft (15.8 m) and a deck 27 ft wide.

Who owns Road 20012 over Logan River?

It is owned by the U.S. Forest Service.