US Bridges

Parowan Main St. over Parowan Creek

Fair

Iron County, Utah · South End Parowan Main ST · Structure no. 021004D

Built
1925
100 years old, rebuilt 1938
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
41 ft
1 main span
Daily traffic
2,835
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Parowan Main St. over Parowan Creek is a concrete tee beam carrying Parowan Main St. over Parowan Creek in Iron County, Utah. It was built in 1925 and reconstructed in 1938, so it is 100 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 2,835 vehicles a day, roughly 2% of them trucks, projected to reach 3,445 by 2030. The structure is 41 ft (12.5 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesParowan Main St.
CrossesParowan Creek
LocationSouth End Parowan Main ST
RouteCity Street 1786
CountyIron County
StateUtah
Coordinates37.83747, -112.82769
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.2 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length41 ft (12.5 m)
Longest span34 ft (10.4 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,835 (2010)
Projected traffic3,445 by 2030
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Parowan Main St. over Parowan Creek built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1938.

What condition is Parowan Main St. over Parowan Creek 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 March 2024.

How much traffic does Parowan Main St. over Parowan Creek carry?

About 2,835 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is Parowan Main St. over Parowan Creek?

The structure is 41 ft (12.5 m) long with a longest span of 34 ft (10.4 m) and a deck 31 ft wide.

Who owns Parowan Main St. over Parowan Creek?

It is owned by the City or Municipal Highway Agency.