US Bridges

I 70 Ml Ebnd over US 40 Ml

Fair

Jefferson County, Colorado · 0.6 MI E of JCT US 6 · Structure no. F-16-HH

Built
1969
56 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
374 ft
4 main spans
Daily traffic
35,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml Ebnd over US 40 Ml is a concrete continuous box beam or girders - multiple carrying I 70 Ml Ebnd over US 40 Ml in Jefferson County, Colorado. It was built in 1969, so it is 56 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 35,000 vehicles a day, roughly 8% of them trucks, projected to reach 43,750 by 2040. The structure is 374 ft (113.9 m) long and 54 ft wide.

CarriesI 70 Ml Ebnd
CrossesUS 40 Ml
Location0.6 MI E of JCT US 6
RouteInterstate 70A
Coordinates39.73058, -105.1706
Functional classUrban 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
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.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating39.2 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length374 ft (113.9 m)
Longest span132 ft (40.2 m)
Deck width54 ft (16.5 m)
Roadway width52 ft (15.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,000 (2020)
Projected traffic43,750 by 2040
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Ebnd over US 40 Ml built?

It was built in 1969, making it 56 years old in 2025.

What condition is I 70 Ml Ebnd over US 40 Ml 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 June 2024.

How much traffic does I 70 Ml Ebnd over US 40 Ml carry?

About 35,000 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is I 70 Ml Ebnd over US 40 Ml?

The structure is 374 ft (113.9 m) long with a longest span of 132 ft (40.2 m) and a deck 54 ft wide.

Who owns I 70 Ml Ebnd over US 40 Ml?

It is owned by the State Highway Agency.