US Bridges

I 70 Ml over Draw

Fair

Arapahoe County, Colorado · In Deertrail · Structure no. F-20-BN

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
11,000
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 Arapahoe County, Colorado. It was built in 1965, so it is 60 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 11,000 vehicles a day, roughly 32% of them trucks, projected to reach 14,080 by 2040. The structure is 24 ft (7.4 m) long and 199 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml
CrossesDraw
LocationIn Deertrail
RouteInterstate 70A
Coordinates39.61198, -104.03914
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 inspectionMay 2023
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 alignment8: Equal to present desirable criteria
Operating rating57.4 US tons
Inventory rating34.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span11 ft (3.5 m)
Deck width199 ft (60.7 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,000 (2020)
Projected traffic14,080 by 2040
Trucks32%
Lanes on structure6
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 1965, making it 60 years old in 2025.

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 May 2023.

How much traffic does I 70 Ml over Draw carry?

About 11,000 vehicles per day (2020 count), of which roughly 32% are trucks.

How long is I 70 Ml over Draw?

The structure is 24 ft (7.4 m) long with a longest span of 11 ft (3.5 m) and a deck 199 ft wide.

Who owns I 70 Ml over Draw?

It is owned by the State Highway Agency.