US Bridges

Cr. 55R/GEYSER DR over San Miguel River

Fair

San Miguel County, Colorado · .1 MI W of SH 145 · Structure no. SMG55R-0.0-17A

Built
1989
36 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
17
2022 count
Owner
County
County Highway Agency

About this bridge

Cr. 55R/GEYSER DR over San Miguel River is a steel stringer/multi-beam or girder carrying Cr. 55R/GEYSER DR over San Miguel River in San Miguel County, Colorado. It was built in 1989, so it is 36 years old, younger 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 17 vehicles a day, projected to reach 19 by 2042. The structure is 75 ft (22.9 m) long and 30 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

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CarriesCr. 55R/GEYSER DR
CrossesSan Miguel River
Location.1 MI W of SH 145
RouteCounty Highway 0
CountySan Miguel County
StateColorado
Coordinates38.01661, -108.05386
Functional classRural Local

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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span70 ft (21.3 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17 (2022)
Projected traffic19 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cr. 55R/GEYSER DR over San Miguel River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Cr. 55R/GEYSER DR over San Miguel River 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 June 2024.

How much traffic does Cr. 55R/GEYSER DR over San Miguel River carry?

About 17 vehicles per day (2022 count).

How long is Cr. 55R/GEYSER DR over San Miguel River?

The structure is 75 ft (22.9 m) long with a longest span of 70 ft (21.3 m) and a deck 30 ft wide.

Who owns Cr. 55R/GEYSER DR over San Miguel River?

It is owned by the County Highway Agency.