US Bridges

Kentucky Avenue over Weir Gulch

Poor

Jefferson County, Colorado · 1/2 Blk W of Pierce ST · Structure no. LKWD-04-0.50-02

Built
1970
55 years old
Condition
Poor
inspected April 2023
Type
Culvert
Steel
Length
32 ft
2 main spans
Daily traffic
5,467
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kentucky Avenue over Weir Gulch is a steel culvert carrying Kentucky Avenue over Weir Gulch in Jefferson County, Colorado. It was built in 1970, so it is 55 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 5,467 vehicles a day, roughly 4% of them trucks, projected to reach 6,287 by 2041. The structure is 32 ft (9.8 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKentucky Avenue
CrossesWeir Gulch
Location1/2 Blk W of Pierce ST
RouteCity Street 0
CountyJefferson County
StateColorado
Coordinates39.70031, -105.07314
Functional classUrban 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length32 ft (9.8 m)
Longest span14 ft (4.4 m)
Deck width71 ft (21.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,467 (2021)
Projected traffic6,287 by 2041
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Kentucky Avenue over Weir Gulch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Kentucky Avenue over Weir Gulch 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 April 2023.

How much traffic does Kentucky Avenue over Weir Gulch carry?

About 5,467 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Kentucky Avenue over Weir Gulch?

The structure is 32 ft (9.8 m) long with a longest span of 14 ft (4.4 m) and a deck 71 ft wide.

Who owns Kentucky Avenue over Weir Gulch?

It is owned by the City or Municipal Highway Agency.