US Bridges

Confluence Dr. over RR Spur

Fair

Delta County, Colorado · 0.4 MI W of SH50 · Structure no. DELTA BYPASS-2

Built
2013
12 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
151 ft
1 main span
Daily traffic
5,474
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Confluence Dr. over RR Spur is a prestressed concrete stringer/multi-beam or girder carrying Confluence Dr. over RR Spur in Delta County, Colorado. It was built in 2013, so it is 12 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 6 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 5,474 vehicles a day, roughly 30% of them trucks, projected to reach 6,186 by 2042. The structure is 151 ft (46.1 m) long and 69 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesConfluence Dr.
CrossesRR Spur
Location0.4 MI W of SH50
RouteCity Street 0
CountyDelta County
StateColorado
Coordinates38.74611, -108.07472
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.2 US tons
Inventory rating52.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length151 ft (46.1 m)
Longest span113 ft (34.3 m)
Deck width69 ft (21 m)
Roadway width66 ft (20.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,474 (2022)
Projected traffic6,186 by 2042
Trucks30%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 Dr. over RR Spur built?

It was built in 2013, making it 12 years old in 2025.

What condition is Confluence Dr. over RR Spur 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 September 2023.

How much traffic does Confluence Dr. over RR Spur carry?

About 5,474 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is Confluence Dr. over RR Spur?

The structure is 151 ft (46.1 m) long with a longest span of 113 ft (34.3 m) and a deck 69 ft wide.

Who owns Confluence Dr. over RR Spur?

It is owned by the City or Municipal Highway Agency.