US Bridges

County Road 20 over North Fork Henson Creek

Fair

Hinsdale County, Colorado · 8.4 MI W of Lake City · Structure no. HIN02-08.96A

Built
1986
39 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
166
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 20 over North Fork Henson Creek is a steel stringer/multi-beam or girder carrying County Road 20 over North Fork Henson Creek in Hinsdale County, Colorado. It was built in 1986, so it is 39 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 166 vehicles a day, roughly 2% of them trucks, projected to reach 201 by 2042. The structure is 31 ft (9.3 m) long and 29 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesCounty Road 20
CrossesNorth Fork Henson Creek
Location8.4 MI W of Lake City
RouteCounty Highway 0
CountyHinsdale County
StateColorado
Coordinates38.00703, -107.46661
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating34.2 US tons
Inventory rating20.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length31 ft (9.3 m)
Longest span29 ft (8.8 m)
Deck width29 ft (8.7 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic166 (2022)
Projected traffic201 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 County Road 20 over North Fork Henson Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Road 20 over North Fork Henson 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 October 2024.

How much traffic does County Road 20 over North Fork Henson Creek carry?

About 166 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 20 over North Fork Henson Creek?

The structure is 31 ft (9.3 m) long with a longest span of 29 ft (8.8 m) and a deck 29 ft wide.

Who owns County Road 20 over North Fork Henson Creek?

It is owned by the County Highway Agency.