US Bridges

SH 120 Ml over Draw

Fair

Fremont County, Colorado · 3 MI E of Portland · Structure no. K-17-D

Built
1925
100 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
42 ft
1 main span
Daily traffic
190
2020 count
Owner
State
State Highway Agency

About this bridge

SH 120 Ml over Draw is a concrete tee beam carrying SH 120 Ml over Draw in Fremont County, Colorado. It was built in 1925, so it is 100 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 190 vehicles a day, roughly 15% of them trucks, projected to reach 230 by 2040. The structure is 42 ft (12.8 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSH 120 Ml
CrossesDraw
Location3 MI E of Portland
RouteState Highway 120A
Coordinates38.38589, -104.97613
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating55.6 US tons
Inventory rating33.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckOther
Main spans1
Design loadH 15
Structure length42 ft (12.8 m)
Longest span36 ft (11 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2020)
Projected traffic230 by 2040
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

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

Frequently asked questions

When was SH 120 Ml over Draw built?

It was built in 1925, making it 100 years old in 2025.

What condition is SH 120 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 August 2024.

How much traffic does SH 120 Ml over Draw carry?

About 190 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is SH 120 Ml over Draw?

The structure is 42 ft (12.8 m) long with a longest span of 36 ft (11 m) and a deck 24 ft wide.

Who owns SH 120 Ml over Draw?

It is owned by the State Highway Agency.