US Bridges

I 70 Ml Ebnd over County Road 185

Fair

Arapahoe County, Colorado · 1.8 MI E of JCT US 36 (by · Structure no. F-20-AO

Built
1963
62 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
119 ft
3 main spans
Daily traffic
6,000
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Ml Ebnd over County Road 185 is a concrete tee beam carrying I 70 Ml Ebnd over County Road 185 in Arapahoe County, Colorado. It was built in 1963, so it is 62 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 6,000 vehicles a day, roughly 32% of them trucks, projected to reach 7,800 by 2040. The structure is 119 ft (36.2 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI 70 Ml Ebnd
CrossesCounty Road 185
Location1.8 MI E of JCT US 36 (by
RouteInterstate 70A
Coordinates39.70447, -104.19105
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.8 US tons
Inventory rating44.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length119 ft (36.2 m)
Longest span39 ft (12 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2020)
Projected traffic7,800 by 2040
Trucks32%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 Ebnd over County Road 185 built?

It was built in 1963, making it 62 years old in 2025.

What condition is I 70 Ml Ebnd over County Road 185 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 Ebnd over County Road 185 carry?

About 6,000 vehicles per day (2020 count), of which roughly 32% are trucks.

How long is I 70 Ml Ebnd over County Road 185?

The structure is 119 ft (36.2 m) long with a longest span of 39 ft (12 m) and a deck 42 ft wide.

Who owns I 70 Ml Ebnd over County Road 185?

It is owned by the State Highway Agency.