US Bridges

48th Ct over S. Goose Creek

Good

Boulder County, Colorado · 30 Ft N of Pearl Parkway · Structure no. BOLD-20-0.01-01

Built
1986
39 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
641
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

48th Ct over S. Goose Creek is a concrete culvert carrying 48th Ct over S. 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 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 641 vehicles a day, roughly 11% of them trucks, projected to reach 770 by 2042. The structure is 44 ft (13.3 m) long and 50 ft wide.

Carries48th Ct
CrossesS. Goose Creek
Location30 Ft N of Pearl Parkway
RouteCity Street 0
Coordinates40.02238, -105.24074
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length44 ft (13.3 m)
Longest span16 ft (4.9 m)
Deck width50 ft (15.2 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic641 (2023)
Projected traffic770 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 48th Ct over S. Goose Creek built?

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

What condition is 48th Ct over S. Goose Creek 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 February 2023.

How much traffic does 48th Ct over S. Goose Creek carry?

About 641 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is 48th Ct over S. Goose Creek?

The structure is 44 ft (13.3 m) long with a longest span of 16 ft (4.9 m) and a deck 50 ft wide.

Who owns 48th Ct over S. Goose Creek?

It is owned by the City or Municipal Highway Agency.