US Bridges

Dry Creek Drive over Dry Creek No. 1

Fair

Boulder County, Colorado · 0.1 MI So of Bent Way · Structure no. LONG-DRYCR-BENT

Built
1991
34 years old
Condition
Fair
inspected January 2025
Type
Frame
Concrete
Length
32 ft
1 main span
Daily traffic
5,490
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dry Creek Drive over Dry Creek No. 1 is a concrete frame carrying Dry Creek Drive over Dry Creek No. 1 in Boulder County, Colorado. It was built in 1991, so it is 34 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 6 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 5,490 vehicles a day, roughly 9% of them trucks, projected to reach 6,588 by 2043. The structure is 32 ft (9.8 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDry Creek Drive
CrossesDry Creek No. 1
Location0.1 MI So of Bent Way
RouteCity Street 0
CountyBoulder County
StateColorado
Coordinates40.14808, -105.13322
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span30 ft (9.2 m)
Deck width56 ft (17.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,490 (2023)
Projected traffic6,588 by 2043
Trucks9%
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 Dry Creek Drive over Dry Creek No. 1 built?

It was built in 1991, making it 34 years old in 2025.

What condition is Dry Creek Drive over Dry Creek No. 1 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 Dry Creek Drive over Dry Creek No. 1 carry?

About 5,490 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Dry Creek Drive over Dry Creek No. 1?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.2 m) and a deck 56 ft wide.

Who owns Dry Creek Drive over Dry Creek No. 1?

It is owned by the City or Municipal Highway Agency.