US Bridges

SH 113 Ml over Point-O-Rocks Canal

Fair

Logan County, Colorado · 7.4 MI North of JCT SH 13 · Structure no. A-24-H

Built
1937
88 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
2 main spans
Daily traffic
1,100
2020 count
Owner
State
State Highway Agency

About this bridge

SH 113 Ml over Point-O-Rocks Canal is a steel stringer/multi-beam or girder carrying SH 113 Ml over Point-O-Rocks Canal in Logan County, Colorado. It was built in 1937, so it is 88 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 1,100 vehicles a day, roughly 20% of them trucks, projected to reach 1,309 by 2040. The structure is 65 ft (19.8 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesSH 113 Ml
CrossesPoint-O-Rocks Canal
Location7.4 MI North of JCT SH 13
RouteState Highway 113A
Coordinates40.84132, -103.1152
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.9 US tons
Inventory rating17.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length65 ft (19.8 m)
Longest span30 ft (9.1 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2020)
Projected traffic1,309 by 2040
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$117,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 113 Ml over Point-O-Rocks Canal built?

It was built in 1937, making it 88 years old in 2025.

What condition is SH 113 Ml over Point-O-Rocks Canal 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 February 2025.

How much traffic does SH 113 Ml over Point-O-Rocks Canal carry?

About 1,100 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is SH 113 Ml over Point-O-Rocks Canal?

The structure is 65 ft (19.8 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.

Who owns SH 113 Ml over Point-O-Rocks Canal?

It is owned by the State Highway Agency.