US Bridges

I 70 Ml over Draw

Fair

Lincoln County, Colorado · 2.0 MI E of JCT S.H. 71 · Structure no. G-22-AT

Built
1955
70 years old, rebuilt 1975
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
10,000
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 Lincoln County, Colorado. It was built in 1955 and reconstructed in 1975, so it is 70 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 10,000 vehicles a day, roughly 26% of them trucks, projected to reach 12,300 by 2040. The structure is 21 ft (6.4 m) long and 307 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesI 70 Ml
CrossesDraw
Location2.0 MI E of JCT S.H. 71
RouteInterstate 70A
Coordinates39.26573, -103.58435
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 rating96.1 US tons
Inventory rating57.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width307 ft (93.7 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2020)
Projected traffic12,300 by 2040
Trucks26%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 1955, making it 70 years old in 2025. It was reconstructed in 1975.

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 November 2023.

How much traffic does I 70 Ml over Draw carry?

About 10,000 vehicles per day (2020 count), of which roughly 26% are trucks.

How long is I 70 Ml over Draw?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 307 ft wide.

Who owns I 70 Ml over Draw?

It is owned by the State Highway Agency.