US Bridges

I 70 Business Wbnd over Highline Canal

Fair

Mesa County, Colorado · Just S. of I70 Clifton in · Structure no. H-03-BI

Built
1965
60 years old
Condition
Fair
inspected February 2025
Type
Tee Beam
Concrete
Length
91 ft
3 main spans
Daily traffic
7,500
2020 count
Owner
State
State Highway Agency

About this bridge

I 70 Business Wbnd over Highline Canal is a concrete tee beam carrying I 70 Business Wbnd over Highline Canal in Mesa County, Colorado. It was built in 1965, so it is 60 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 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 7,500 vehicles a day, roughly 7% of them trucks, projected to reach 8,850 by 2040. The structure is 91 ft (27.6 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI 70 Business Wbnd
CrossesHighline Canal
LocationJust S. of I70 Clifton in
RouteState Highway 70B
CountyMesa County
StateColorado
Coordinates39.10018, -108.44791
Functional classUrban Other Principal 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.
Superstructure7 GoodSome minor problems.
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 inspectionFebruary 2025
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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length91 ft (27.6 m)
Longest span50 ft (15.2 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2020)
Projected traffic8,850 by 2040
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 I 70 Business Wbnd over Highline Canal built?

It was built in 1965, making it 60 years old in 2025.

What condition is I 70 Business Wbnd over Highline Canal 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 February 2025.

How much traffic does I 70 Business Wbnd over Highline Canal carry?

About 7,500 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is I 70 Business Wbnd over Highline Canal?

The structure is 91 ft (27.6 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.

Who owns I 70 Business Wbnd over Highline Canal?

It is owned by the State Highway Agency.