US Bridges

Ramp to I 76 Ebnd over I 70 Ml Ebnd

Fair

Jefferson County, Colorado · I70 I76 SH121 Interchan · Structure no. E-16-JY

Built
1982
43 years old
Condition
Fair
inspected January 2025
Type
Box Beam or Girders - Single or Spread
Steel
Length
206 ft
1 main span
Daily traffic
38,000
2020 count
Owner
State
State Highway Agency

About this bridge

Ramp to I 76 Ebnd over I 70 Ml Ebnd is a steel box beam or girders - single or spread carrying Ramp to I 76 Ebnd over I 70 Ml Ebnd in Jefferson County, Colorado. It was built in 1982, so it is 43 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 38,000 vehicles a day, roughly 11% of them trucks, projected to reach 50,160 by 2040. The structure is 206 ft (62.7 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRamp to I 76 Ebnd
CrossesI 70 Ml Ebnd
LocationI70 I76 SH121 Interchan
RouteInterstate 76A
Coordinates39.7862, -105.0752
Functional classUrban Principal Arterial - Interstate

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.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length206 ft (62.7 m)
Longest span200 ft (60.9 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,000 (2020)
Projected traffic50,160 by 2040
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I 76 Ebnd over I 70 Ml Ebnd built?

It was built in 1982, making it 43 years old in 2025.

What condition is Ramp to I 76 Ebnd over I 70 Ml Ebnd 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 January 2025.

How much traffic does Ramp to I 76 Ebnd over I 70 Ml Ebnd carry?

About 38,000 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is Ramp to I 76 Ebnd over I 70 Ml Ebnd?

The structure is 206 ft (62.7 m) long with a longest span of 200 ft (60.9 m) and a deck 48 ft wide.

Who owns Ramp to I 76 Ebnd over I 70 Ml Ebnd?

It is owned by the State Highway Agency.