US Bridges

SH 65 Ml over Gunnison River

Fair

Delta County, Colorado · 5 MI E of Delta · Structure no. I-04-M

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
318 ft
3 main spans
Daily traffic
7,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 65 Ml over Gunnison River is a prestressed concrete continuous stringer/multi-beam or girder carrying SH 65 Ml over Gunnison River in Delta County, Colorado. It was built in 1980, so it is 45 years old, older 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 7,000 vehicles a day, roughly 3% of them trucks, projected to reach 7,700 by 2040. The structure is 318 ft (96.9 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSH 65 Ml
CrossesGunnison River
Location5 MI E of Delta
RouteState Highway 65A
Coordinates38.77231, -108.00274
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
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 rating68.5 US tons
Inventory rating39.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length318 ft (96.9 m)
Longest span106 ft (32.3 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,000 (2020)
Projected traffic7,700 by 2040
Trucks3%
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

OwnerState Highway Agency
Maintained byState 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 SH 65 Ml over Gunnison River built?

It was built in 1980, making it 45 years old in 2025.

What condition is SH 65 Ml over Gunnison River 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 SH 65 Ml over Gunnison River carry?

About 7,000 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is SH 65 Ml over Gunnison River?

The structure is 318 ft (96.9 m) long with a longest span of 106 ft (32.3 m) and a deck 43 ft wide.

Who owns SH 65 Ml over Gunnison River?

It is owned by the State Highway Agency.