US Bridges

Confluence Ave over Traverse Wash

Fair

La Plata County, Colorado · 0.8 MI N of US160 · Structure no. DURANGO-006

Built
2004
21 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
2,588
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Confluence Ave over Traverse Wash is a concrete culvert carrying Confluence Ave over Traverse Wash in La Plata County, Colorado. It was built in 2004, so it is 21 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 5 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 2,588 vehicles a day, roughly 3% of them trucks, projected to reach 3,054 by 2042. The structure is 23 ft (7 m) long and 95 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesConfluence Ave
CrossesTraverse Wash
Location0.8 MI N of US160
RouteCity Street 0
Coordinates37.23704, -107.82071
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span12 ft (3.7 m)
Deck width95 ft (28.9 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,588 (2022)
Projected traffic3,054 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Confluence Ave over Traverse Wash built?

It was built in 2004, making it 21 years old in 2025.

What condition is Confluence Ave over Traverse Wash 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 October 2024.

How much traffic does Confluence Ave over Traverse Wash carry?

About 2,588 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Confluence Ave over Traverse Wash?

The structure is 23 ft (7 m) long with a longest span of 12 ft (3.7 m) and a deck 95 ft wide.

Who owns Confluence Ave over Traverse Wash?

It is owned by the City or Municipal Highway Agency.