US Bridges

County Road GG.5 over Garland Ditch

Fair

Costilla County, Colorado · 0.7 MI Wsw of Ft. Garland · Structure no. CSEE-W0.7-S159A

Built
1997
28 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
41
2022 count
Owner
County
County Highway Agency

About this bridge

County Road GG.5 over Garland Ditch is a steel stringer/multi-beam or girder carrying County Road GG.5 over Garland Ditch in Costilla County, Colorado. It was built in 1997, so it is 28 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 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 41 vehicles a day, projected to reach 46 by 2042. The structure is 29 ft (8.8 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCounty Road GG.5
CrossesGarland Ditch
Location0.7 MI Wsw of Ft. Garland
RouteCounty Highway 0
CountyCostilla County
StateColorado
Coordinates37.42463, -105.44376
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.7 US tons
Inventory rating44.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span24 ft (7.4 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2022)
Projected traffic46 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 Road GG.5 over Garland Ditch built?

It was built in 1997, making it 28 years old in 2025.

What condition is County Road GG.5 over Garland Ditch 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 March 2023.

How much traffic does County Road GG.5 over Garland Ditch carry?

About 41 vehicles per day (2022 count).

How long is County Road GG.5 over Garland Ditch?

The structure is 29 ft (8.8 m) long with a longest span of 24 ft (7.4 m) and a deck 33 ft wide.

Who owns County Road GG.5 over Garland Ditch?

It is owned by the County Highway Agency.