US Bridges

Zion - Mount Carme over Pine Creek

Fair

Washington County, Utah · From South Entrance Go 1 · Structure no. 1590006P0000000

Built
1929
96 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
140 ft
4 main spans
Daily traffic
3,300
2023 count
Owner
Federal
National Park Service

About this bridge

Zion - Mount Carme over Pine Creek is a steel stringer/multi-beam or girder carrying Zion - Mount Carme over Pine Creek in Washington County, Utah. It was built in 1929, so it is 96 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 5 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 3,300 vehicles a day, roughly 20% of them trucks, projected to reach 3,630 by 2043. The structure is 140 ft (42.7 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesZion - Mount Carme
CrossesPine Creek
LocationFrom South Entrance Go 1
RouteState Highway 9
CountyWashington County
StateUtah
Coordinates37.21305, -112.94093
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length140 ft (42.7 m)
Longest span35 ft (10.7 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2023)
Projected traffic3,630 by 2043
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Zion - Mount Carme over Pine Creek built?

It was built in 1929, making it 96 years old in 2025.

What condition is Zion - Mount Carme over Pine 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 Pine Creek carry?

About 3,300 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is Zion - Mount Carme over Pine Creek?

The structure is 140 ft (42.7 m) long with a longest span of 35 ft (10.7 m) and a deck 24 ft wide.

Who owns Zion - Mount Carme over Pine Creek?

It is owned by the National Park Service.