US Bridges

I 70 Ml over Draw

Fair

Adams County, Colorado · 0.75 MI W of Watkins Intc · Structure no. F-18-W

Built
1960
65 years old, rebuilt 1998
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
26,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml over Draw is a concrete culvert carrying I 70 Ml over Draw in Adams County, Colorado. It was built in 1960 and reconstructed in 1998, so it is 65 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 26,000 vehicles a day, roughly 19% of them trucks, projected to reach 34,060 by 2040. The structure is 25 ft (7.6 m) long and 182 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml
CrossesDraw
Location0.75 MI W of Watkins Intc
RouteInterstate 70A
Coordinates39.73995, -104.61673
Functional classRural Principal Arterial - Interstate

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 inspectionAugust 2023
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 rating78.2 US tons
Inventory rating46.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width182 ft (55.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2020)
Projected traffic34,060 by 2040
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I 70 Ml over Draw built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1998.

What condition is I 70 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 August 2023.

How much traffic does I 70 Ml over Draw carry?

About 26,000 vehicles per day (2020 count), of which roughly 19% are trucks.

How long is I 70 Ml over Draw?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 182 ft wide.

Who owns I 70 Ml over Draw?

It is owned by the State Highway Agency.