US Bridges

US 287 over Draw

Good

Boulder County, Colorado · Just N of NW Pkwy · Structure no. E-16-NG

Built
1993
32 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
39,000
2020 count
Owner
State
State Highway Agency

About this bridge

US 287 over Draw is a concrete culvert carrying US 287 over Draw in Boulder County, Colorado. It was built in 1993, so it is 32 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 39,000 vehicles a day, roughly 4% of them trucks, projected to reach 48,750 by 2040. The structure is 25 ft (7.6 m) long and 234 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesUS 287
CrossesDraw
LocationJust N of NW Pkwy
RouteU.S. Route 287C
Coordinates39.96132, -105.09001
Functional classUrban Other Principal Arterial

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 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating75.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span13 ft (4 m)
Deck width234 ft (71.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,000 (2020)
Projected traffic48,750 by 2040
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$197,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 287 over Draw built?

It was built in 1993, making it 32 years old in 2025.

What condition is US 287 over Draw 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 2025.

How much traffic does US 287 over Draw carry?

About 39,000 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is US 287 over Draw?

The structure is 25 ft (7.6 m) long with a longest span of 13 ft (4 m) and a deck 234 ft wide.

Who owns US 287 over Draw?

It is owned by the State Highway Agency.