US Bridges

E 88th Ave | Irond over Wolf Creek

Poor

Adams County, Colorado · 0.5 MI E of Piggott MI RD · Structure no. ADA088-38.5N092

Built
1960
65 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
569
2021 count
Owner
County
County Highway Agency

About this bridge

E 88th Ave | Irond over Wolf Creek is a steel stringer/multi-beam or girder carrying E 88th Ave | Irond over Wolf Creek in Adams County, Colorado. It was built in 1960, so it is 65 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 3 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 569 vehicles a day, roughly 10% of them trucks, projected to reach 739 by 2041. The structure is 24 ft (7.3 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesE 88th Ave | Irond
CrossesWolf Creek
Location0.5 MI E of Piggott MI RD
RouteCounty Highway 0
Coordinates39.85456, -104.33119
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating29.9 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span22 ft (6.8 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic569 (2021)
Projected traffic739 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 E 88th Ave | Irond over Wolf Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is E 88th Ave | Irond over Wolf 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 November 2024.

How much traffic does E 88th Ave | Irond over Wolf Creek carry?

About 569 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is E 88th Ave | Irond over Wolf Creek?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.8 m) and a deck 27 ft wide.

Who owns E 88th Ave | Irond over Wolf Creek?

It is owned by the County Highway Agency.