US Bridges

SH 115 Ml over Oak Creek

Fair

Fremont County, Colorado · W. Edge of Florence · Structure no. K-16-Y

Built
1936
89 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
64 ft
1 main span
Daily traffic
5,900
2020 count
Owner
State
State Highway Agency

About this bridge

SH 115 Ml over Oak Creek is a steel stringer/multi-beam or girder carrying SH 115 Ml over Oak Creek in Fremont 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 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 5,900 vehicles a day, roughly 2% of them trucks, projected to reach 6,667 by 2040. The structure is 64 ft (19.4 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSH 115 Ml
CrossesOak Creek
LocationW. Edge of Florence
RouteState Highway 115A
Coordinates38.39652, -105.12837
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32 US tons
Inventory rating19.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length64 ft (19.4 m)
Longest span60 ft (18.3 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2020)
Projected traffic6,667 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$144,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 115 Ml over Oak Creek built?

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

What condition is SH 115 Ml over Oak 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 August 2024.

How much traffic does SH 115 Ml over Oak Creek carry?

About 5,900 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is SH 115 Ml over Oak Creek?

The structure is 64 ft (19.4 m) long with a longest span of 60 ft (18.3 m) and a deck 42 ft wide.

Who owns SH 115 Ml over Oak Creek?

It is owned by the State Highway Agency.