US Bridges

Ramp to SH 74 Sbnd over I 70 Ml R

Good

Jefferson County, Colorado · 20 Mi. W. of Denver · Structure no. F-15-CT

Built
1993
32 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
421 ft
2 main spans
Daily traffic
8,000
2020 count
Owner
State
State Highway Agency

About this bridge

Ramp to SH 74 Sbnd over I 70 Ml R is a steel continuous box beam or girders - single or spread carrying Ramp to SH 74 Sbnd over I 70 Ml R in Jefferson County, Colorado. It was built in 1993, so it is 32 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,000 vehicles a day, roughly 2% of them trucks, projected to reach 8,560 by 2040. The structure is 421 ft (128.3 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRamp to SH 74 Sbnd
CrossesI 70 Ml R
Location20 Mi. W. of Denver
RouteState Highway 74A
Coordinates39.70259, -105.32857
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.3 US tons
Inventory rating23.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length421 ft (128.3 m)
Longest span217 ft (66.1 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2020)
Projected traffic8,560 by 2040
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 Ramp to SH 74 Sbnd over I 70 Ml R built?

It was built in 1993, making it 32 years old in 2025.

What condition is Ramp to SH 74 Sbnd over I 70 Ml R in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Ramp to SH 74 Sbnd over I 70 Ml R carry?

About 8,000 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Ramp to SH 74 Sbnd over I 70 Ml R?

The structure is 421 ft (128.3 m) long with a longest span of 217 ft (66.1 m) and a deck 43 ft wide.

Who owns Ramp to SH 74 Sbnd over I 70 Ml R?

It is owned by the State Highway Agency.