US Bridges

Garson RD over I 80

Fair

Washoe County, Nevada · West of Reno · Structure no. I 770

Built
1964
61 years old, rebuilt 1975
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
252 ft
4 main spans
Daily traffic
2,600
2017 count
Owner
State
State Highway Agency

About this bridge

Garson RD over I 80 is a concrete continuous box beam or girders - multiple carrying Garson RD over I 80 in Washoe County, Nevada. It was built in 1964 and reconstructed in 1975, so it is 61 years old, older than the Nevada average of 36.4 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 2,600 vehicles a day, roughly 19% of them trucks, projected to reach 6,453 by 2040. The structure is 252 ft (76.8 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesGarson RD
CrossesI 80
LocationWest of Reno
CountyWashoe County
StateNevada
Coordinates39.51081, -119.96439
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.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating29.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length252 ft (76.8 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2017)
Projected traffic6,453 by 2040
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Garson RD over I 80 built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1975.

What condition is Garson RD over I 80 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 May 2024.

How much traffic does Garson RD over I 80 carry?

About 2,600 vehicles per day (2017 count), of which roughly 19% are trucks.

How long is Garson RD over I 80?

The structure is 252 ft (76.8 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns Garson RD over I 80?

It is owned by the State Highway Agency.