US Bridges

Quebec Street over E-470 Ml

Good

Adams County, Colorado · 41.57 MI from I25 · Structure no. E-470-41.57C

Built
2001
24 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
237 ft
2 main spans
Daily traffic
2,500
2021 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Quebec Street over E-470 Ml is a prestressed concrete continuous stringer/multi-beam or girder carrying Quebec Street 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 2,500 vehicles a day, roughly 4% of them trucks, projected to reach 4,450 by 2041. The structure is 237 ft (72.2 m) long and 58 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesQuebec Street
CrossesE-470 Ml
Location41.57 MI from I25
RouteCounty Highway 0
Coordinates39.96092, -104.90342
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.8 US tons
Inventory rating32.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length237 ft (72.2 m)
Longest span118 ft (36 m)
Deck width58 ft (17.8 m)
Roadway width46 ft (14.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2021)
Projected traffic4,450 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed6.2 mi (10 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 Quebec Street over E-470 Ml built?

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

What condition is Quebec Street 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 Quebec Street over E-470 Ml carry?

About 2,500 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Quebec Street over E-470 Ml?

The structure is 237 ft (72.2 m) long with a longest span of 118 ft (36 m) and a deck 58 ft wide.

Who owns Quebec Street over E-470 Ml?

It is owned by the Local Toll Authority.