US Bridges

Main Street over Plateau Creek

Fair

Mesa County, Colorado · .1 MI S of CR 330E · Structure no. COL-58.5-0.99A

Built
1988
37 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
58 ft
1 main span
Daily traffic
1,216
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main Street over Plateau Creek is a prestressed concrete tee beam carrying Main Street over Plateau Creek in Mesa County, Colorado. It was built in 1988, so it is 37 years old, younger than the Colorado average of 42.2 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 1,216 vehicles a day, roughly 10% of them trucks, projected to reach 1,423 by 2042. The structure is 58 ft (17.7 m) long and 42 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

CarriesMain Street
CrossesPlateau Creek
Location.1 MI S of CR 330E
RouteCity Street 0
Coordinates39.24071, -107.96085
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.9 US tons
Inventory rating27.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span56 ft (17.1 m)
Deck width42 ft (12.8 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,216 (2022)
Projected traffic1,423 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed60.3 mi (97 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Street over Plateau Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Main Street over Plateau 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 January 2024.

How much traffic does Main Street over Plateau Creek carry?

About 1,216 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Main Street over Plateau Creek?

The structure is 58 ft (17.7 m) long with a longest span of 56 ft (17.1 m) and a deck 42 ft wide.

Who owns Main Street over Plateau Creek?

It is owned by the City or Municipal Highway Agency.