US Bridges

38th Avenue/Aurora over E-470

Good

Adams County, Colorado · 2 MI N of I-70 · Structure no. E-470-22.44C

Built
2024
1 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
283 ft
2 main spans
Daily traffic
34,000
2023 count
Owner
Toll Authority
Local Toll Authority

About this bridge

38th Avenue/Aurora over E-470 is a prestressed concrete continuous stringer/multi-beam or girder carrying 38th Avenue/Aurora over E-470 in Adams County, Colorado. It was built in 2024, so it is 1 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 34,000 vehicles a day, roughly 3% of them trucks, projected to reach 34,000 by 2043. The structure is 283 ft (86.3 m) long and 138 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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Carries38th Avenue/Aurora
CrossesE-470
Location2 MI N of I-70
RouteCity Street 0
CountyAdams County
StateColorado
Coordinates39.76931, -104.71705
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable 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 rating61.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length283 ft (86.3 m)
Longest span136 ft (41.6 m)
Deck width138 ft (42.1 m)
Roadway width104 ft (31.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,000 (2023)
Projected traffic34,000 by 2043
Trucks3%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 38th Avenue/Aurora over E-470 built?

It was built in 2024, making it 1 years old in 2025.

What condition is 38th Avenue/Aurora over E-470 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 2024.

How much traffic does 38th Avenue/Aurora over E-470 carry?

About 34,000 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is 38th Avenue/Aurora over E-470?

The structure is 283 ft (86.3 m) long with a longest span of 136 ft (41.6 m) and a deck 138 ft wide.

Who owns 38th Avenue/Aurora over E-470?

It is owned by the Local Toll Authority.