US Bridges

Willow Run Pkwy over Local Drainage

Good

Broomfield County, Colorado · 200 Ft W of Zuni · Structure no. BFD-WILLOW-ZUNI

Built
1999
26 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
1,577
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Willow Run Pkwy over Local Drainage is a concrete culvert carrying Willow Run Pkwy over Local Drainage in Broomfield County, Colorado. It was built in 1999, so it is 26 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 1,577 vehicles a day, roughly 9% of them trucks, projected to reach 1,892 by 2043. The structure is 35 ft (10.7 m) long and 74 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWillow Run Pkwy
CrossesLocal Drainage
Location200 Ft W of Zuni
RouteCity Street 0
Coordinates39.92485, -105.01623
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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.1 US tons
Inventory rating35.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span17 ft (5.2 m)
Deck width74 ft (22.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,577 (2023)
Projected traffic1,892 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Willow Run Pkwy over Local Drainage built?

It was built in 1999, making it 26 years old in 2025.

What condition is Willow Run Pkwy 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 Willow Run Pkwy over Local Drainage carry?

About 1,577 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Willow Run Pkwy over Local Drainage?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.2 m) and a deck 74 ft wide.

Who owns Willow Run Pkwy over Local Drainage?

It is owned by the City or Municipal Highway Agency.