US Bridges

SH 113 Ml over Draw

Fair

Logan County, Colorado · 12.5 MI N of JCT SH 138 · Structure no. A-24-M

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

About this bridge

SH 113 Ml over Draw is a steel stringer/multi-beam or girder carrying SH 113 Ml over Draw 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 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 1,100 vehicles a day, roughly 20% of them trucks, projected to reach 1,309 by 2040. The structure is 38 ft (11.6 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesSH 113 Ml
CrossesDraw
Location12.5 MI N of JCT SH 138
RouteState Highway 113A
Coordinates40.91484, -103.11556
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating35.4 US tons
Inventory rating21.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length38 ft (11.6 m)
Longest span35 ft (10.7 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 113 Ml over Draw built?

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

What condition is SH 113 Ml over Draw 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 Draw carry?

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

How long is SH 113 Ml over Draw?

The structure is 38 ft (11.6 m) long with a longest span of 35 ft (10.7 m) and a deck 33 ft wide.

Who owns SH 113 Ml over Draw?

It is owned by the State Highway Agency.