US Bridges

County RD 31XX over Tomichi Creek

Fair

Saguache County, Colorado · Just S of SH 50 · Structure no. SAG31XX-0.9-12

Built
1973
52 years old
Condition
Fair
inspected January 2025
Type
Girder and Floorbeam System
Steel
Length
45 ft
1 main span
Daily traffic
16
2022 count
Owner
County
County Highway Agency

About this bridge

County RD 31XX over Tomichi Creek is a steel girder and floorbeam system carrying County RD 31XX over Tomichi Creek in Saguache County, Colorado. It was built in 1973, so it is 52 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 16 vehicles a day, projected to reach 19 by 2042. The structure is 45 ft (13.8 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCounty RD 31XX
CrossesTomichi Creek
LocationJust S of SH 50
RouteCounty Highway 0
CountySaguache County
StateColorado
Coordinates38.3953, -106.42272
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating28.1 US tons
Inventory rating16.8 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length45 ft (13.8 m)
Longest span43 ft (13 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16 (2022)
Projected traffic19 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 County RD 31XX over Tomichi Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is County RD 31XX over Tomichi 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 January 2025.

How much traffic does County RD 31XX over Tomichi Creek carry?

About 16 vehicles per day (2022 count).

How long is County RD 31XX over Tomichi Creek?

The structure is 45 ft (13.8 m) long with a longest span of 43 ft (13 m) and a deck 28 ft wide.

Who owns County RD 31XX over Tomichi Creek?

It is owned by the County Highway Agency.