US Bridges

Third Street over Dry Creek

Fair

Routt County, Colorado · 0.2 MI So of US HWY 40 · Structure no. HAYDEN-3RD-A

Built
1989
36 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
1,004
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Third Street over Dry Creek is a steel stringer/multi-beam or girder carrying Third Street over Dry Creek in Routt County, Colorado. It was built in 1989, so it is 36 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 1,004 vehicles a day, roughly 20% of them trucks, projected to reach 1,195 by 2042. The structure is 42 ft (12.7 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesThird Street
CrossesDry Creek
Location0.2 MI So of US HWY 40
RouteCity Street 0
Coordinates40.49055, -107.26333
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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 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 rating36.4 US tons
Inventory rating21.8 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length42 ft (12.7 m)
Longest span39 ft (11.9 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,004 (2023)
Projected traffic1,195 by 2042
Trucks20%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Third Street over Dry Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Third Street over Dry Creek 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 October 2024.

How much traffic does Third Street over Dry Creek carry?

About 1,004 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is Third Street over Dry Creek?

The structure is 42 ft (12.7 m) long with a longest span of 39 ft (11.9 m) and a deck 32 ft wide.

Who owns Third Street over Dry Creek?

It is owned by the City or Municipal Highway Agency.