US Bridges

Broadway over Unnamed Draw

Fair

Douglas County, Colorado · 0.5 Miles South of C-470 · Structure no. DOU004-00.10

Built
1985
40 years old
Condition
Fair
inspected January 2025
Type
Culvert
Steel
Length
27 ft
2 main spans
Daily traffic
35,365
2020 count
Owner
County
County Highway Agency

About this bridge

Broadway over Unnamed Draw is a steel culvert carrying Broadway over Unnamed Draw in Douglas County, Colorado. It was built in 1985, so it is 40 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 35,365 vehicles a day, roughly 6% of them trucks, projected to reach 47,389 by 2040. The structure is 27 ft (8.1 m) long and 302 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBroadway
CrossesUnnamed Draw
Location0.5 Miles South of C-470
RouteCounty Highway 0
Coordinates39.55738, -104.9893
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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length27 ft (8.1 m)
Longest span11 ft (3.4 m)
Deck width302 ft (91.9 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,365 (2020)
Projected traffic47,389 by 2040
Trucks6%
Lanes on structure6
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Broadway over Unnamed Draw built?

It was built in 1985, making it 40 years old in 2025.

What condition is Broadway over Unnamed Draw 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 Broadway over Unnamed Draw carry?

About 35,365 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Broadway over Unnamed Draw?

The structure is 27 ft (8.1 m) long with a longest span of 11 ft (3.4 m) and a deck 302 ft wide.

Who owns Broadway over Unnamed Draw?

It is owned by the County Highway Agency.