US Bridges

US 24 Ml over Grape Creek

Fair

Teller County, Colorado · 0.5 MI W of Florissant · Structure no. I-15-AB

Built
1936
89 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
116 ft
5 main spans
Daily traffic
5,200
2020 count
Owner
State
State Highway Agency

About this bridge

US 24 Ml over Grape Creek is a wood or timber stringer/multi-beam or girder carrying US 24 Ml over Grape Creek in Teller County, Colorado. It was built in 1936, so it is 89 years old, older 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 5,200 vehicles a day, roughly 5% of them trucks, projected to reach 6,188 by 2040. The structure is 116 ft (35.5 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 24 Ml
CrossesGrape Creek
Location0.5 MI W of Florissant
RouteU.S. Route 24A
Coordinates38.94552, -105.29792
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.9 US tons
Inventory rating29.5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadH 15
Structure length116 ft (35.5 m)
Longest span23 ft (7 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,200 (2020)
Projected traffic6,188 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 Grape Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is US 24 Ml over Grape 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 December 2024.

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

About 5,200 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is US 24 Ml over Grape Creek?

The structure is 116 ft (35.5 m) long with a longest span of 23 ft (7 m) and a deck 30 ft wide.

Who owns US 24 Ml over Grape Creek?

It is owned by the State Highway Agency.