US Bridges

Sunbrook Drive over Box Cyn Wash

Fair

Washington County, Utah · 400 W. Sunbrook Drive · Structure no. 053043E

Built
1984
41 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
1,386
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sunbrook Drive over Box Cyn Wash is a concrete culvert carrying Sunbrook Drive over Box Cyn Wash in Washington County, Utah. It was built in 1984, so it is 41 years old, older than the Utah average of 40.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,386 vehicles a day, roughly 5% of them trucks, projected to reach 1,684 by 2030. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSunbrook Drive
CrossesBox Cyn Wash
Location400 W. Sunbrook Drive
RouteCity Street 3173
CountyWashington County
StateUtah
Coordinates37.10465, -113.63328
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100 US tons
Inventory rating100 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length28 ft (8.4 m)
Longest span8 ft (2.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,386 (2010)
Projected traffic1,684 by 2030
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Sunbrook Drive over Box Cyn Wash built?

It was built in 1984, making it 41 years old in 2025.

What condition is Sunbrook Drive over Box Cyn Wash in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does Sunbrook Drive over Box Cyn Wash carry?

About 1,386 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Sunbrook Drive over Box Cyn Wash?

The structure is 28 ft (8.4 m) long with a longest span of 8 ft (2.5 m).

Who owns Sunbrook Drive over Box Cyn Wash?

It is owned by the City or Municipal Highway Agency.