US Bridges

SR-189 over Murdock Canal

Good

Utah County, Utah · 1.1 Mi.East of Olmstead · Structure no. 0E2222

Built
1956
69 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
37 ft
1 main span
Daily traffic
21,990
2014 count
Owner
State
State Highway Agency

About this bridge

SR-189 over Murdock Canal is a concrete culvert carrying SR-189 over Murdock Canal in Utah County, Utah. It was built in 1956, so it is 69 years old, older 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 21,990 vehicles a day, roughly 46% of them trucks, projected to reach 27,488 by 2034. The structure is 37 ft (11.2 m) long. If it were closed, the detour would be 90.1 mi (145 km).

CarriesSR-189
CrossesMurdock Canal
Location1.1 Mi.East of Olmstead
RouteState Highway 189
StateUtah
Coordinates40.32417, -111.64333
Functional classUrban Other Principal Arterial

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 inspectionMay 2023
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 15
Structure length37 ft (11.2 m)
Longest span31 ft (9.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,990 (2014)
Projected traffic27,488 by 2034
Trucks46%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed90.1 mi (145 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR-189 over Murdock Canal built?

It was built in 1956, making it 69 years old in 2025.

What condition is SR-189 over Murdock Canal 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 May 2023.

How much traffic does SR-189 over Murdock Canal carry?

About 21,990 vehicles per day (2014 count), of which roughly 46% are trucks.

How long is SR-189 over Murdock Canal?

The structure is 37 ft (11.2 m) long with a longest span of 31 ft (9.4 m).

Who owns SR-189 over Murdock Canal?

It is owned by the State Highway Agency.