US Bridges

29 Road over Govt Highline Canal

Fair

Mesa County, Colorado · Just N of RD G · Structure no. GRJ-29-F.9A

Built
1989
36 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
290
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

29 Road over Govt Highline Canal is a steel stringer/multi-beam or girder carrying 29 Road over Govt Highline Canal in Mesa 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 290 vehicles a day, roughly 2% of them trucks, projected to reach 340 by 2042. The structure is 62 ft (19 m) long and 32 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
Carries29 Road
CrossesGovt Highline Canal
LocationJust N of RD G
RouteCity Street 0
CountyMesa County
StateColorado
Coordinates39.10419, -108.51522
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating47.3 US tons
Inventory rating28.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length62 ft (19 m)
Longest span57 ft (17.3 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (2022)
Projected traffic340 by 2042
Trucks2%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 29 Road over Govt Highline Canal built?

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

What condition is 29 Road over Govt Highline Canal 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 February 2024.

How much traffic does 29 Road over Govt Highline Canal carry?

About 290 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 29 Road over Govt Highline Canal?

The structure is 62 ft (19 m) long with a longest span of 57 ft (17.3 m) and a deck 32 ft wide.

Who owns 29 Road over Govt Highline Canal?

It is owned by the City or Municipal Highway Agency.