US Bridges

I 25 Bus Rt over Sull Creek

Good

Huerfano County, Colorado · 2 Miles North of JCT US 1 · Structure no. N-17-BV

Built
2014
11 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
83 ft
1 main span
Daily traffic
5,100
2020 count
Owner
State
State Highway Agency

About this bridge

I 25 Bus Rt over Sull Creek is a prestressed concrete box beam or girders - multiple carrying I 25 Bus Rt over Sull Creek in Huerfano County, Colorado. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,100 vehicles a day, roughly 9% of them trucks, projected to reach 5,661 by 2040. The structure is 83 ft (25.2 m) long and 59 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesI 25 Bus Rt
CrossesSull Creek
Location2 Miles North of JCT US 1
RouteState Highway 25C
Coordinates37.6506, -104.7915
Functional classRural 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating40.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length83 ft (25.2 m)
Longest span80 ft (24.4 m)
Deck width59 ft (18 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,100 (2020)
Projected traffic5,661 by 2040
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I 25 Bus Rt over Sull Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is I 25 Bus Rt over Sull Creek 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 February 2025.

How much traffic does I 25 Bus Rt over Sull Creek carry?

About 5,100 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is I 25 Bus Rt over Sull Creek?

The structure is 83 ft (25.2 m) long with a longest span of 80 ft (24.4 m) and a deck 59 ft wide.

Who owns I 25 Bus Rt over Sull Creek?

It is owned by the State Highway Agency.