US Bridges

SH 115 Ml over Salt Creek

Fair

Fremont County, Colorado · 8.2 MI NE of Penrose · Structure no. J-17-G

Built
1938
87 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
8,900
2020 count
Owner
State
State Highway Agency

About this bridge

SH 115 Ml over Salt Creek is a concrete culvert carrying SH 115 Ml over Salt Creek in Fremont County, Colorado. It was built in 1938, so it is 87 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 8,900 vehicles a day, roughly 10% of them trucks, projected to reach 10,413 by 2040. The structure is 29 ft (8.8 m) long and 76 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

CarriesSH 115 Ml
CrossesSalt Creek
Location8.2 MI NE of Penrose
RouteState Highway 115A
Coordinates38.5313, -104.96624
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 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 evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating89.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width76 ft (23.2 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2020)
Projected traffic10,413 by 2040
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 115 Ml over Salt Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is SH 115 Ml over Salt 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 Salt Creek carry?

About 8,900 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is SH 115 Ml over Salt Creek?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m) and a deck 76 ft wide.

Who owns SH 115 Ml over Salt Creek?

It is owned by the State Highway Agency.