US Bridges

Dry Creek RD over Willow Creek

Poor

Arapahoe County, Colorado · .1 MI E of Monaco · Structure no. CENT 46-7.6

Built
1972
53 years old
Condition
Poor
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
3,964
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dry Creek RD over Willow Creek is a prestressed concrete tee beam carrying Dry Creek RD over Willow Creek in Arapahoe County, Colorado. It was built in 1972, so it is 53 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,964 vehicles a day, roughly 6% of them trucks, projected to reach 4,836 by 2041. The structure is 52 ft (15.9 m) long and 61 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesDry Creek RD
CrossesWillow Creek
Location.1 MI E of Monaco
RouteCity Street 0
Coordinates39.58054, -104.91213
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length52 ft (15.9 m)
Longest span49 ft (14.8 m)
Deck width61 ft (18.6 m)
Roadway width58 ft (17.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,964 (2021)
Projected traffic4,836 by 2041
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dry Creek RD over Willow Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Dry Creek RD over Willow Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Dry Creek RD over Willow Creek carry?

About 3,964 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Dry Creek RD over Willow Creek?

The structure is 52 ft (15.9 m) long with a longest span of 49 ft (14.8 m) and a deck 61 ft wide.

Who owns Dry Creek RD over Willow Creek?

It is owned by the City or Municipal Highway Agency.