US Bridges

US 24 Ml over Twin Creek

Good

Teller County, Colorado · 1.0 MI E of Florissant · Structure no. I-15-Y

Built
1937
88 years old, rebuilt 2011
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
5,400
2020 count
Owner
State
State Highway Agency

About this bridge

US 24 Ml over Twin Creek is a prestressed concrete box beam or girders - single or spread carrying US 24 Ml over Twin Creek in Teller County, Colorado. It was built in 1937 and reconstructed in 2011, so it is 88 years old, older 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 5,400 vehicles a day, roughly 5% of them trucks, projected to reach 6,426 by 2040. The structure is 53 ft (16.1 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 24 Ml
CrossesTwin Creek
Location1.0 MI E of Florissant
RouteU.S. Route 24A
Coordinates38.95107, -105.27186
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.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating79.9 US tons
Inventory rating44.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadH 20
Structure length53 ft (16.1 m)
Longest span50 ft (15.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2020)
Projected traffic6,426 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 24 Ml over Twin Creek built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 2011.

What condition is US 24 Ml over Twin 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 December 2024.

How much traffic does US 24 Ml over Twin Creek carry?

About 5,400 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is US 24 Ml over Twin Creek?

The structure is 53 ft (16.1 m) long with a longest span of 50 ft (15.1 m) and a deck 35 ft wide.

Who owns US 24 Ml over Twin Creek?

It is owned by the State Highway Agency.