US Bridges

SH 14 Ml over Arapahoe Creek

Fair

Jackson County, Colorado · 10.0 Miles North of JCT U · Structure no. C-11-A

Built
1950
75 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
1,300
2020 count
Owner
State
State Highway Agency

About this bridge

SH 14 Ml over Arapahoe Creek is a steel stringer/multi-beam or girder carrying SH 14 Ml over Arapahoe Creek in Jackson County, Colorado. It was built in 1950, so it is 75 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 6 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 1,300 vehicles a day, roughly 15% of them trucks, projected to reach 1,794 by 2040. The structure is 50 ft (15.1 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSH 14 Ml
CrossesArapahoe Creek
Location10.0 Miles North of JCT U
RouteState Highway 14A
Coordinates40.4513, -106.4447
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating26 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length50 ft (15.1 m)
Longest span45 ft (13.7 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2020)
Projected traffic1,794 by 2040
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 SH 14 Ml over Arapahoe Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is SH 14 Ml over Arapahoe 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 September 2024.

How much traffic does SH 14 Ml over Arapahoe Creek carry?

About 1,300 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is SH 14 Ml over Arapahoe Creek?

The structure is 50 ft (15.1 m) long with a longest span of 45 ft (13.7 m) and a deck 28 ft wide.

Who owns SH 14 Ml over Arapahoe Creek?

It is owned by the State Highway Agency.