US Bridges

SH 92 Ml over Alkali Creek

Fair

Montrose County, Colorado · 3.7 MI SE of Crawford · Structure no. J-06-D

Built
1936
89 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
94 ft
4 main spans
Daily traffic
300
2020 count
Owner
State
State Highway Agency

About this bridge

SH 92 Ml over Alkali Creek is a wood or timber stringer/multi-beam or girder carrying SH 92 Ml over Alkali Creek in Montrose County, Colorado. It was built in 1936, so it is 89 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 300 vehicles a day, roughly 9% of them trucks, projected to reach 336 by 2040. The structure is 94 ft (28.7 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSH 92 Ml
CrossesAlkali Creek
Location3.7 MI SE of Crawford
RouteState Highway 92A
Coordinates38.66269, -107.59371
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 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 rating36.7 US tons
Inventory rating23.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 20
Structure length94 ft (28.7 m)
Longest span23 ft (6.9 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2020)
Projected traffic336 by 2040
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 92 Ml over Alkali Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is SH 92 Ml over Alkali 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 92 Ml over Alkali Creek carry?

About 300 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is SH 92 Ml over Alkali Creek?

The structure is 94 ft (28.7 m) long with a longest span of 23 ft (6.9 m) and a deck 26 ft wide.

Who owns SH 92 Ml over Alkali Creek?

It is owned by the State Highway Agency.