US Bridges

US 36 Ml over Draw

Fair

Adams County, Colorado · 12 MI E of Byers · Structure no. F-20-BO

Built
1987
38 years old
Condition
Fair
inspected March 2025
Type
Culvert
Steel
Length
23 ft
2 main spans
Daily traffic
790
2020 count
Owner
State
State Highway Agency

About this bridge

US 36 Ml over Draw is a steel culvert carrying US 36 Ml over Draw in Adams County, Colorado. It was built in 1987, so it is 38 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 790 vehicles a day, roughly 42% of them trucks, projected to reach 980 by 2040. The structure is 23 ft (7 m) long and 84 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesUS 36 Ml
CrossesDraw
Location12 MI E of Byers
RouteU.S. Route 36D
Coordinates39.74005, -104.01303
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.7 US tons
Inventory rating65.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width84 ft (25.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic790 (2020)
Projected traffic980 by 2040
Trucks42%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 US 36 Ml over Draw built?

It was built in 1987, making it 38 years old in 2025.

What condition is US 36 Ml over Draw 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 March 2025.

How much traffic does US 36 Ml over Draw carry?

About 790 vehicles per day (2020 count), of which roughly 42% are trucks.

How long is US 36 Ml over Draw?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 84 ft wide.

Who owns US 36 Ml over Draw?

It is owned by the State Highway Agency.