US Bridges

EB US 36 Off Ramp over EB Bus Ramp

Good

Boulder County, Colorado · Mccaslin and US 36 · Structure no. E-16-ZJ

Built
2016
9 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
26,000
2021 count
Owner
State
State Highway Agency

About this bridge

EB US 36 Off Ramp over EB Bus Ramp is a prestressed concrete stringer/multi-beam or girder carrying EB US 36 Off Ramp over EB Bus Ramp in Boulder County, Colorado. It was built in 2016, so it is 9 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 26,000 vehicles a day, roughly 2% of them trucks, projected to reach 31,200 by 2041. The structure is 45 ft (13.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEB US 36 Off Ramp
CrossesEB Bus Ramp
LocationMccaslin and US 36
RouteU.S. Route 36B
Coordinates39.95859, -105.16644
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82.1 US tons
Inventory rating64.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length45 ft (13.8 m)
Longest span39 ft (11.9 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2021)
Projected traffic31,200 by 2041
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 EB US 36 Off Ramp over EB Bus Ramp built?

It was built in 2016, making it 9 years old in 2025.

What condition is EB US 36 Off Ramp over EB Bus Ramp 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 July 2023.

How much traffic does EB US 36 Off Ramp over EB Bus Ramp carry?

About 26,000 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is EB US 36 Off Ramp over EB Bus Ramp?

The structure is 45 ft (13.8 m) long with a longest span of 39 ft (11.9 m) and a deck 43 ft wide.

Who owns EB US 36 Off Ramp over EB Bus Ramp?

It is owned by the State Highway Agency.