US Bridges

SH 8 Ml over Draw

Fair

Jefferson County, Colorado · In Morrison · Structure no. F-16-AO

Built
1934
91 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
4,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 8 Ml over Draw is a concrete culvert carrying SH 8 Ml over Draw in Jefferson County, Colorado. It was built in 1934, so it is 91 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 4,000 vehicles a day, roughly 2% of them trucks, projected to reach 4,640 by 2040. The structure is 22 ft (6.8 m) long and 80 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSH 8 Ml
CrossesDraw
LocationIn Morrison
RouteState Highway 8A
Coordinates39.65364, -105.19523
Functional classUrban 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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.8 m)
Longest span11 ft (3.3 m)
Deck width80 ft (24.4 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2020)
Projected traffic4,640 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 SH 8 Ml over Draw built?

It was built in 1934, making it 91 years old in 2025.

What condition is SH 8 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 December 2024.

How much traffic does SH 8 Ml over Draw carry?

About 4,000 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is SH 8 Ml over Draw?

The structure is 22 ft (6.8 m) long with a longest span of 11 ft (3.3 m) and a deck 80 ft wide.

Who owns SH 8 Ml over Draw?

It is owned by the State Highway Agency.