US Bridges

CR 20/RED Mtn RD over Hunter Creek

Fair

Pitkin County, Colorado · Just S Pitkin Sign · Structure no. PIT-020-00.2A

Built
1955
70 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
2,733
2022 count
Owner
County
County Highway Agency

About this bridge

CR 20/RED Mtn RD over Hunter Creek is a steel stringer/multi-beam or girder carrying CR 20/RED Mtn RD over Hunter Creek in Pitkin County, Colorado. It was built in 1955, so it is 70 years old, older 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 2,733 vehicles a day, roughly 5% of them trucks, projected to reach 3,007 by 2042. The structure is 28 ft (8.5 m) long and 38 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCR 20/RED Mtn RD
CrossesHunter Creek
LocationJust S Pitkin Sign
RouteCounty Highway 0
CountyPitkin County
StateColorado
Coordinates39.19705, -106.81836
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52 US tons
Inventory rating31.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span24 ft (7.3 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,733 (2022)
Projected traffic3,007 by 2042
Trucks5%
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 CR 20/RED Mtn RD over Hunter Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is CR 20/RED Mtn RD over Hunter 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 CR 20/RED Mtn RD over Hunter Creek carry?

About 2,733 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is CR 20/RED Mtn RD over Hunter Creek?

The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 38 ft wide.

Who owns CR 20/RED Mtn RD over Hunter Creek?

It is owned by the County Highway Agency.