US Bridges

SH 8 Ml over Draw

Fair

Jefferson County, Colorado · South of Morrison · Structure no. F-16-AX

Built
1935
90 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
4,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 8 Ml over Draw is a concrete slab carrying SH 8 Ml over Draw in Jefferson County, Colorado. It was built in 1935, so it is 90 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 5 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 23 ft (6.9 m) long and 33 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesSH 8 Ml
CrossesDraw
LocationSouth of Morrison
RouteState Highway 8A
Coordinates39.63964, -105.19349
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.9 US tons
Inventory rating33.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length23 ft (6.9 m)
Longest span21 ft (6.4 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 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 closed16.2 mi (26 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 1935, making it 90 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 23 ft (6.9 m) long with a longest span of 21 ft (6.4 m) and a deck 33 ft wide.

Who owns SH 8 Ml over Draw?

It is owned by the State Highway Agency.