US Bridges

CO RD 76 over Quartz Creek

Fair

Gunnison County, Colorado · 6.7 MI NE of Parlin · Structure no. GUN076-06.80A

Built
1998
27 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
46 ft
1 main span
Daily traffic
498
2022 count
Owner
County
County Highway Agency

About this bridge

CO RD 76 over Quartz Creek is a concrete box beam or girders - multiple carrying CO RD 76 over Quartz Creek in Gunnison County, Colorado. It was built in 1998, so it is 27 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 498 vehicles a day, roughly 2% of them trucks, projected to reach 578 by 2042. The structure is 46 ft (14 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesCO RD 76
CrossesQuartz Creek
Location6.7 MI NE of Parlin
RouteCounty Highway 0
Coordinates38.56247, -106.63122
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
Deck9 ExcellentNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.9 US tons
Inventory rating47.7 US tons

Structure

MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span40 ft (12.3 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic498 (2022)
Projected traffic578 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CO RD 76 over Quartz Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is CO RD 76 over Quartz 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 2024.

How much traffic does CO RD 76 over Quartz Creek carry?

About 498 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is CO RD 76 over Quartz Creek?

The structure is 46 ft (14 m) long with a longest span of 40 ft (12.3 m) and a deck 35 ft wide.

Who owns CO RD 76 over Quartz Creek?

It is owned by the County Highway Agency.