US Bridges

Chase Street over Local Drainage

Fair

Broomfield County, Colorado · At 120th Avenue · Structure no. BFD-CHASE-120TH

Built
2000
25 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
3,372
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Chase Street over Local Drainage is a concrete culvert carrying Chase Street over Local Drainage in Broomfield County, Colorado. It was built in 2000, so it is 25 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 3,372 vehicles a day, roughly 9% of them trucks, projected to reach 4,046 by 2042. The structure is 25 ft (7.6 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesChase Street
CrossesLocal Drainage
LocationAt 120th Avenue
RouteCity Street 0
Coordinates39.91394, -105.05756
Functional classUrban Other Principal 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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.6 US tons
Inventory rating43.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width62 ft (18.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,372 (2023)
Projected traffic4,046 by 2042
Trucks9%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Chase Street over Local Drainage built?

It was built in 2000, making it 25 years old in 2025.

What condition is Chase Street over Local Drainage 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 January 2025.

How much traffic does Chase Street over Local Drainage carry?

About 3,372 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Chase Street over Local Drainage?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 62 ft wide.

Who owns Chase Street over Local Drainage?

It is owned by the City or Municipal Highway Agency.