US Bridges

13th Street over Yampa River

Good

Routt County, Colorado · 300 Ft SW of US HWY 40 · Structure no. 1250.08A

Built
1986
39 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
3,908
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

13th Street over Yampa River is a prestressed concrete stringer/multi-beam or girder carrying 13th Street over Yampa River in Routt County, Colorado. It was built in 1986, so it is 39 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 3,908 vehicles a day, roughly 24% of them trucks, projected to reach 4,650 by 2042. The structure is 103 ft (31.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries13th Street
CrossesYampa River
Location300 Ft SW of US HWY 40
RouteCity Street 0
Coordinates40.48901, -106.84168
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.9 US tons
Inventory rating24 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length103 ft (31.4 m)
Longest span97 ft (29.6 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,908 (2023)
Projected traffic4,650 by 2042
Trucks24%
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 13th Street over Yampa River built?

It was built in 1986, making it 39 years old in 2025.

What condition is 13th Street over Yampa River 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 October 2024.

How much traffic does 13th Street over Yampa River carry?

About 3,908 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is 13th Street over Yampa River?

The structure is 103 ft (31.4 m) long with a longest span of 97 ft (29.6 m) and a deck 42 ft wide.

Who owns 13th Street over Yampa River?

It is owned by the City or Municipal Highway Agency.