US Bridges

County Road over Scipio Lake Dam Spillway

Good

Millard County, Utah · West End of Scipio Lk.Dam · Structure no. 027025E

Built
1989
36 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
13
2014 count
Owner
County
County Highway Agency

About this bridge

County Road over Scipio Lake Dam Spillway is a concrete culvert carrying County Road over Scipio Lake Dam Spillway in Millard County, Utah. It was built in 1989, so it is 36 years old, younger than the Utah average of 40.1 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 13 vehicles a day, projected to reach 16 by 2034. The structure is 22 ft (6.7 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesScipio Lake Dam Spillway
LocationWest End of Scipio Lk.Dam
RouteCounty Highway 0
CountyMillard County
StateUtah
Coordinates39.12113, -112.05649
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13 (2014)
Projected traffic16 by 2034
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

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

Frequently asked questions

When was County Road over Scipio Lake Dam Spillway built?

It was built in 1989, making it 36 years old in 2025.

What condition is County Road over Scipio Lake Dam Spillway 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 March 2024.

How much traffic does County Road over Scipio Lake Dam Spillway carry?

About 13 vehicles per day (2014 count).

How long is County Road over Scipio Lake Dam Spillway?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns County Road over Scipio Lake Dam Spillway?

It is owned by the County Highway Agency.