US Bridges

County Road 33 over I 70 Ml

Fair

Mesa County, Colorado · 12 MI W of JCT SH 65 Ml · Structure no. H-03-BE

Built
1963
62 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete Continuous
Length
272 ft
4 main spans
Daily traffic
226
2022 count
Owner
State
State Highway Agency

About this bridge

County Road 33 over I 70 Ml is a concrete continuous tee beam carrying County Road 33 over I 70 Ml in Mesa County, Colorado. It was built in 1963, so it is 62 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 226 vehicles a day, roughly 2% of them trucks, projected to reach 265 by 2042. The structure is 272 ft (83 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 33
CrossesI 70 Ml
Location12 MI W of JCT SH 65 Ml
RouteCounty Highway 0
CountyMesa County
StateColorado
Coordinates39.10686, -108.44098
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating44.5 US tons
Inventory rating26.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length272 ft (83 m)
Longest span77 ft (23.5 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic226 (2022)
Projected traffic265 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$531,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 33 over I 70 Ml built?

It was built in 1963, making it 62 years old in 2025.

What condition is County Road 33 over I 70 Ml 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 March 2024.

How much traffic does County Road 33 over I 70 Ml carry?

About 226 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 33 over I 70 Ml?

The structure is 272 ft (83 m) long with a longest span of 77 ft (23.5 m) and a deck 28 ft wide.

Who owns County Road 33 over I 70 Ml?

It is owned by the State Highway Agency.