US Bridges

Colorado Blvd over E-470 Ml

Good

Adams County, Colorado · 43.66 MI from I25 · Structure no. E-470-43.66C

Built
2001
24 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
231 ft
2 main spans
Daily traffic
944
2020 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Colorado Blvd over E-470 Ml is a prestressed concrete continuous stringer/multi-beam or girder carrying Colorado Blvd over E-470 Ml in Adams County, Colorado. It was built in 2001, so it is 24 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 944 vehicles a day, roughly 4% of them trucks, projected to reach 1,958 by 2040. The structure is 231 ft (70.5 m) long and 60 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesColorado Blvd
CrossesE-470 Ml
Location43.66 MI from I25
Coordinates39.97422, -104.93719
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating42.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length231 ft (70.5 m)
Longest span112 ft (34.2 m)
Deck width60 ft (18.4 m)
Roadway width48 ft (14.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic944 (2020)
Projected traffic1,958 by 2040
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
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 Colorado Blvd over E-470 Ml built?

It was built in 2001, making it 24 years old in 2025.

What condition is Colorado Blvd over E-470 Ml in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Colorado Blvd over E-470 Ml carry?

About 944 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Colorado Blvd over E-470 Ml?

The structure is 231 ft (70.5 m) long with a longest span of 112 ft (34.2 m) and a deck 60 ft wide.

Who owns Colorado Blvd over E-470 Ml?

It is owned by the Local Toll Authority.