US Bridges

88th Ave over Box Elder Creek

Poor

Adams County, Colorado · 0.3 MI E of Hudson Road · Structure no. ADA088-023.3112

Built
1935
90 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
2 main spans
Daily traffic
44
2021 count
Owner
County
County Highway Agency

About this bridge

88th Ave over Box Elder Creek is a steel stringer/multi-beam or girder carrying 88th Ave over Box Elder Creek in Adams County, Colorado. It was built in 1935, so it is 90 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 44 vehicles a day, roughly 5% of them trucks, projected to reach 57 by 2041. The structure is 62 ft (18.9 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries88th Ave
CrossesBox Elder Creek
Location0.3 MI E of Hudson Road
RouteCounty Highway 0
Coordinates39.85571, -104.61529
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating24.6 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length62 ft (18.9 m)
Longest span29 ft (8.7 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2021)
Projected traffic57 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 88th Ave over Box Elder Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is 88th Ave over Box Elder Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does 88th Ave over Box Elder Creek carry?

About 44 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 88th Ave over Box Elder Creek?

The structure is 62 ft (18.9 m) long with a longest span of 29 ft (8.7 m) and a deck 26 ft wide.

Who owns 88th Ave over Box Elder Creek?

It is owned by the County Highway Agency.