US Bridges

88th Avenue over E-470

Fair

Adams County, Colorado · 29.39 MI from I25 · Structure no. E-470-29.39C

Built
1996
29 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
249 ft
2 main spans
Daily traffic
43,000
2018 count
Owner
Private
Private (other than railroad)

About this bridge

88th Avenue over E-470 is a prestressed concrete continuous stringer/multi-beam or girder carrying 88th Avenue over E-470 in Adams County, Colorado. It was built in 1996, so it is 29 years old, younger 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 6 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 43,000 vehicles a day, roughly 4% of them trucks, projected to reach 510 by 2038. The structure is 249 ft (75.8 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries88th Avenue
CrossesE-470
Location29.39 MI from I25
RouteCounty Highway 0
Coordinates39.85644, -104.74758
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.3 US tons
Inventory rating54.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length249 ft (75.8 m)
Longest span119 ft (36.4 m)
Deck width47 ft (14.2 m)
Roadway width45 ft (13.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,000 (2018)
Projected traffic510 by 2038
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerPrivate (other than railroad)
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 88th Avenue over E-470 built?

It was built in 1996, making it 29 years old in 2025.

What condition is 88th Avenue over E-470 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 July 2024.

How much traffic does 88th Avenue over E-470 carry?

About 43,000 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is 88th Avenue over E-470?

The structure is 249 ft (75.8 m) long with a longest span of 119 ft (36.4 m) and a deck 47 ft wide.

Who owns 88th Avenue over E-470?

It is owned by the Private (other than railroad) and maintained by the Local Toll Authority.