US Bridges

Junction Place over Boulder and Left Hand Di

Good

Boulder County, Colorado · 350 Ft S of Pearl Pkwy · Structure no. BOLD-55-JUNCTPL

Built
2021
4 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
29 ft
1 main span
Daily traffic
1,484
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Junction Place over Boulder and Left Hand Di is a concrete culvert carrying Junction Place over Boulder and Left Hand Di in Boulder County, Colorado. It was built in 2021, so it is 4 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 1,484 vehicles a day, roughly 4% of them trucks, projected to reach 1,781 by 2043. The structure is 29 ft (8.7 m) long and 85 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesJunction Place
CrossesBoulder and Left Hand Di
Location350 Ft S of Pearl Pkwy
RouteCity Street 0
CountyBoulder County
StateColorado
Coordinates40.02249, -105.25187
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length29 ft (8.7 m)
Longest span26 ft (8 m)
Deck width85 ft (25.9 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,484 (2023)
Projected traffic1,781 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Junction Place over Boulder and Left Hand Di built?

It was built in 2021, making it 4 years old in 2025.

What condition is Junction Place over Boulder and Left Hand Di 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 2024.

How much traffic does Junction Place over Boulder and Left Hand Di carry?

About 1,484 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Junction Place over Boulder and Left Hand Di?

The structure is 29 ft (8.7 m) long with a longest span of 26 ft (8 m) and a deck 85 ft wide.

Who owns Junction Place over Boulder and Left Hand Di?

It is owned by the City or Municipal Highway Agency.