US Bridges

123rd Place over Local Drainage

Good

Broomfield County, Colorado · North of Wolff Drive · Structure no. BFD-123RD-WOLFF

Built
1996
29 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
34 ft
4 main spans
Daily traffic
1,232
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

123rd Place over Local Drainage is a concrete culvert carrying 123rd Place over Local Drainage in Broomfield County, Colorado. It was built in 1996, so it is 29 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,232 vehicles a day, roughly 8% of them trucks, projected to reach 1,479 by 2043. The structure is 34 ft (10.5 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries123rd Place
CrossesLocal Drainage
LocationNorth of Wolff Drive
RouteCity Street 0
Coordinates39.92049, -105.05113
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.7 US tons
Inventory rating44.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length34 ft (10.5 m)
Longest span8 ft (2.4 m)
Deck width55 ft (16.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,232 (2023)
Projected traffic1,479 by 2043
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 123rd Place over Local Drainage built?

It was built in 1996, making it 29 years old in 2025.

What condition is 123rd Place over Local Drainage 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 January 2025.

How much traffic does 123rd Place over Local Drainage carry?

About 1,232 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is 123rd Place over Local Drainage?

The structure is 34 ft (10.5 m) long with a longest span of 8 ft (2.4 m) and a deck 55 ft wide.

Who owns 123rd Place over Local Drainage?

It is owned by the City or Municipal Highway Agency.