US Bridges

Zion - Mount Carme over Co-Op Creek

Fair

Kane County, Utah · From South Entrance Go 1 · Structure no. 1590008P0000000

Built
1993
32 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
116 ft
2 main spans
Daily traffic
3,682
2022 count
Owner
Federal
National Park Service

About this bridge

Zion - Mount Carme over Co-Op Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Zion - Mount Carme over Co-Op Creek in Kane County, Utah. It was built in 1993, so it is 32 years old, younger 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 3,682 vehicles a day, roughly 20% of them trucks, projected to reach 4,418 by 2042. The structure is 116 ft (35.4 m) long and 31 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesZion - Mount Carme
CrossesCo-Op Creek
LocationFrom South Entrance Go 1
RouteState Highway 9
StateUtah
Coordinates37.23097, -112.87836
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length116 ft (35.4 m)
Longest span56 ft (17.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,682 (2022)
Projected traffic4,418 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
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 Zion - Mount Carme over Co-Op Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Zion - Mount Carme over Co-Op 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 May 2023.

How much traffic does Zion - Mount Carme over Co-Op Creek carry?

About 3,682 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Zion - Mount Carme over Co-Op Creek?

The structure is 116 ft (35.4 m) long with a longest span of 56 ft (17.2 m) and a deck 31 ft wide.

Who owns Zion - Mount Carme over Co-Op Creek?

It is owned by the National Park Service.