US Bridges

Pearl Parkway over North Goose Creek

Fair

Boulder County, Colorado · 0.6 M E of Foothills Pkwy · Structure no. BOLD-18-2.21-02

Built
1986
39 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
8,372
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Pearl Parkway over North Goose Creek is a concrete culvert carrying Pearl Parkway over North Goose Creek in Boulder County, Colorado. It was built in 1986, so it is 39 years old, younger 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 8,372 vehicles a day, roughly 8% of them trucks, projected to reach 10,047 by 2042. The structure is 44 ft (13.3 m) long and 104 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesPearl Parkway
CrossesNorth Goose Creek
Location0.6 M E of Foothills Pkwy
RouteCity Street 0
Coordinates40.0235, -105.23169
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.2 US tons
Inventory rating46.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.3 m)
Longest span14 ft (4.3 m)
Deck width104 ft (31.8 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,372 (2023)
Projected traffic10,047 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pearl Parkway over North Goose Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Pearl Parkway over North Goose Creek 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 February 2025.

How much traffic does Pearl Parkway over North Goose Creek carry?

About 8,372 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Pearl Parkway over North Goose Creek?

The structure is 44 ft (13.3 m) long with a longest span of 14 ft (4.3 m) and a deck 104 ft wide.

Who owns Pearl Parkway over North Goose Creek?

It is owned by the City or Municipal Highway Agency.