US Bridges

SH 120 Ml over Bear Creek

Fair

Fremont County, Colorado · 0.7 MI E of Portland · Structure no. K-16-M

Built
1925
100 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
82 ft
4 main spans
Daily traffic
190
2020 count
Owner
State
State Highway Agency

About this bridge

SH 120 Ml over Bear Creek is a concrete slab carrying SH 120 Ml over Bear Creek 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 82 ft (25 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSH 120 Ml
CrossesBear Creek
Location0.7 MI E of Portland
RouteState Highway 120A
Coordinates38.38893, -105.00886
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 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 rating43 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length82 ft (25 m)
Longest span18 ft (5.5 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 Bear Creek built?

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

What condition is SH 120 Ml over Bear 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 120 Ml over Bear Creek carry?

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

How long is SH 120 Ml over Bear Creek?

The structure is 82 ft (25 m) long with a longest span of 18 ft (5.5 m) and a deck 24 ft wide.

Who owns SH 120 Ml over Bear Creek?

It is owned by the State Highway Agency.