US Bridges

N Converse Road over Lost Creek Tributary

PoorPosted for load

Adams County, Colorado · 0.2 MI S of 88th Ave · Structure no. ADA33N-086.4140

Built
1960
65 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
118
2021 count
Owner
County
County Highway Agency

About this bridge

N Converse Road over Lost Creek Tributary is a steel stringer/multi-beam or girder carrying N Converse Road over Lost Creek Tributary 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. Its operating status is: posted for load restriction.

It carries about 118 vehicles a day, projected to reach 154 by 2041. The structure is 40 ft (12.3 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN Converse Road
CrossesLost Creek Tributary
Location0.2 MI S of 88th Ave
RouteCounty Highway 0
Coordinates39.85138, -104.43275
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating14 US tons
Inventory rating8.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span39 ft (11.8 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic118 (2021)
Projected traffic154 by 2041
Trucks0%
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 N Converse Road over Lost Creek Tributary built?

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

What condition is N Converse Road over Lost Creek Tributary 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 N Converse Road over Lost Creek Tributary carry?

About 118 vehicles per day (2021 count).

How long is N Converse Road over Lost Creek Tributary?

The structure is 40 ft (12.3 m) long with a longest span of 39 ft (11.8 m) and a deck 26 ft wide.

Who owns N Converse Road over Lost Creek Tributary?

It is owned by the County Highway Agency.