US Bridges

County RD (100 E) over Beaver River

PoorPosted for load

Beaver County, Utah · South of Adamsville · Structure no. 001003C

Built
1923
102 years old
Condition
Poor
inspected March 2024
Type
Truss - Thru
Steel
Length
62 ft
1 main span
Daily traffic
63
2010 count
Owner
County
County Highway Agency

About this bridge

County RD (100 E) over Beaver River is a steel truss - thru carrying County RD (100 E) over Beaver River in Beaver County, Utah. It was built in 1923, so it is 102 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. Its operating status is: posted for load restriction.

It carries about 63 vehicles a day, projected to reach 77 by 2030. The structure is 62 ft (18.9 m) long and 15 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty RD (100 E)
CrossesBeaver River
LocationSouth of Adamsville
RouteCounty Highway 1005
StateUtah
Coordinates38.25233, -112.78922
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating14.3 US tons
Inventory rating10.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length62 ft (18.9 m)
Longest span60 ft (18.3 m)
Deck width15 ft (4.7 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63 (2010)
Projected traffic77 by 2030
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County RD (100 E) over Beaver River built?

It was built in 1923, making it 102 years old in 2025.

What condition is County RD (100 E) over Beaver 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 March 2024.

How much traffic does County RD (100 E) over Beaver River carry?

About 63 vehicles per day (2010 count).

How long is County RD (100 E) over Beaver River?

The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.3 m) and a deck 15 ft wide.

Who owns County RD (100 E) over Beaver River?

It is owned by the County Highway Agency.