US Bridges

US 24 Ml over Sand Creek

Fair

Kit Carson County, Colorado · 2 MI W of Seibert · Structure no. G-25-D

Built
1933
92 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
200 ft
5 main spans
Daily traffic
21
2022 count
Owner
State
State Highway Agency

About this bridge

US 24 Ml over Sand Creek is a steel stringer/multi-beam or girder carrying US 24 Ml over Sand Creek in Kit Carson County, Colorado. It was built in 1933, so it is 92 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 21 vehicles a day, roughly 11% of them trucks, projected to reach 25 by 2042. The structure is 200 ft (60.9 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 24 Ml
CrossesSand Creek
Location2 MI W of Seibert
RouteU.S. Route 24B
Coordinates39.28919, -102.9114
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating24.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length200 ft (60.9 m)
Longest span39 ft (11.8 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2022)
Projected traffic25 by 2042
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Sand Creek built?

It was built in 1933, making it 92 years old in 2025.

What condition is US 24 Ml over Sand 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 March 2025.

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

About 21 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is US 24 Ml over Sand Creek?

The structure is 200 ft (60.9 m) long with a longest span of 39 ft (11.8 m) and a deck 33 ft wide.

Who owns US 24 Ml over Sand Creek?

It is owned by the State Highway Agency.