US Bridges

SH 330 Ml over Plateau Creek

Good

Mesa County, Colorado · 3.3 MI E of JCT SH 65 · Structure no. H-04-R

Built
1975
50 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
1,300
2020 count
Owner
State
State Highway Agency

About this bridge

SH 330 Ml over Plateau Creek is a prestressed concrete stringer/multi-beam or girder carrying SH 330 Ml over Plateau Creek in Mesa County, Colorado. It was built in 1975, so it is 50 years old, older than the Colorado average of 42.2 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 1,300 vehicles a day, roughly 11% of them trucks, projected to reach 1,586 by 2040. The structure is 82 ft (25.1 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 330 Ml
CrossesPlateau Creek
Location3.3 MI E of JCT SH 65
RouteState Highway 330A
Coordinates39.18876, -108.08254
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.5 US tons
Inventory rating32.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length82 ft (25.1 m)
Longest span80 ft (24.4 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2020)
Projected traffic1,586 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 SH 330 Ml over Plateau Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is SH 330 Ml over Plateau Creek 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 July 2024.

How much traffic does SH 330 Ml over Plateau Creek carry?

About 1,300 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is SH 330 Ml over Plateau Creek?

The structure is 82 ft (25.1 m) long with a longest span of 80 ft (24.4 m) and a deck 40 ft wide.

Who owns SH 330 Ml over Plateau Creek?

It is owned by the State Highway Agency.