US Bridges

Main Street over Local Drainage

Fair

Broomfield County, Colorado · 0.1 MI N of 2nd Street · Structure no. BFD-MAIN-EMLDPK

Built
1987
38 years old
Condition
Fair
inspected January 2025
Type
Frame
Concrete
Length
53 ft
2 main spans
Daily traffic
10,974
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main Street over Local Drainage is a concrete frame carrying Main Street over Local Drainage in Broomfield County, Colorado. It was built in 1987, so it is 38 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 5 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 10,974 vehicles a day, roughly 8% of them trucks, projected to reach 13,169 by 2043. The structure is 53 ft (16.2 m) long and 86 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMain Street
CrossesLocal Drainage
Location0.1 MI N of 2nd Street
RouteCounty Highway 0
Coordinates39.92012, -105.07168
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.1 US tons
Inventory rating48.9 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckOther
Main spans2
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span24 ft (7.3 m)
Deck width86 ft (26.2 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,974 (2023)
Projected traffic13,169 by 2043
Trucks8%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Main Street over Local Drainage built?

It was built in 1987, making it 38 years old in 2025.

What condition is Main 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 Main Street over Local Drainage carry?

About 10,974 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Main Street over Local Drainage?

The structure is 53 ft (16.2 m) long with a longest span of 24 ft (7.3 m) and a deck 86 ft wide.

Who owns Main Street over Local Drainage?

It is owned by the City or Municipal Highway Agency.