US Bridges

Haystack Road over Sellars Gulch

Good

Douglas County, Colorado · 0.2 MI W of Lake Gulch RD · Structure no. DOU38A-01.27A

Built
2013
12 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
53 ft
3 main spans
Daily traffic
273
2021 count
Owner
County
County Highway Agency

About this bridge

Haystack Road over Sellars Gulch is a concrete culvert carrying Haystack Road over Sellars Gulch in Douglas County, Colorado. It was built in 2013, so it is 12 years old, younger 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 273 vehicles a day, roughly 9% of them trucks, projected to reach 366 by 2041. The structure is 53 ft (16.1 m) long and 38 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesHaystack Road
CrossesSellars Gulch
Location0.2 MI W of Lake Gulch RD
RouteCounty Highway 0
Coordinates39.35332, -104.8387
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length53 ft (16.1 m)
Longest span17 ft (5.2 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic273 (2021)
Projected traffic366 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 Haystack Road over Sellars Gulch built?

It was built in 2013, making it 12 years old in 2025.

What condition is Haystack Road over Sellars Gulch 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 February 2025.

How much traffic does Haystack Road over Sellars Gulch carry?

About 273 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Haystack Road over Sellars Gulch?

The structure is 53 ft (16.1 m) long with a longest span of 17 ft (5.2 m) and a deck 38 ft wide.

Who owns Haystack Road over Sellars Gulch?

It is owned by the County Highway Agency.