US Bridges

WB US 36 on Ramp over WB Bus Ramp/Bike Path

Good

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

Built
2016
9 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
8,180
2023 count
Owner
State
State Highway Agency

About this bridge

WB US 36 on Ramp over WB Bus Ramp/Bike Path is a prestressed concrete stringer/multi-beam or girder carrying WB US 36 on Ramp over WB Bus Ramp/Bike Path 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 8,180 vehicles a day, roughly 2% of them trucks, projected to reach 9,815 by 2042. The structure is 75 ft (22.9 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWB US 36 on Ramp
CrossesWB Bus Ramp/Bike Path
LocationMccaslin and US 36
RouteU.S. Route 36B
Coordinates39.95853, -105.16648
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.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.7 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span71 ft (21.6 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,180 (2023)
Projected traffic9,815 by 2042
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was WB US 36 on Ramp over WB Bus Ramp/Bike Path built?

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

What condition is WB US 36 on Ramp over WB Bus Ramp/Bike Path 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 WB US 36 on Ramp over WB Bus Ramp/Bike Path carry?

About 8,180 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is WB US 36 on Ramp over WB Bus Ramp/Bike Path?

The structure is 75 ft (22.9 m) long with a longest span of 71 ft (21.6 m) and a deck 39 ft wide.

Who owns WB US 36 on Ramp over WB Bus Ramp/Bike Path?

It is owned by the State Highway Agency.