US Bridges

SE 4th Avenue over Graveyard Gulch

Fair

Payette County, Idaho · 4.5S 3.5E New Plymouth · Structure no. 000000000028415

Built
1969
56 years old
Condition
Fair
inspected June 2021
Type
Tee Beam
Prestressed Concrete
Length
22 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

SE 4th Avenue over Graveyard Gulch is a prestressed concrete tee beam carrying SE 4th Avenue over Graveyard Gulch in Payette County, Idaho. It was built in 1969, so it is 56 years old, older than the Idaho average of 45.3 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 75 by 2039. The structure is 22 ft (6.7 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSE 4th Avenue
CrossesGraveyard Gulch
Location4.5S 3.5E New Plymouth
RouteCounty Highway 0
CountyPayette County
StateIdaho
Coordinates43.90917, -116.74917
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 inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating53.6 US tons
Inventory rating38.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic75 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SE 4th Avenue over Graveyard Gulch built?

It was built in 1969, making it 56 years old in 2025.

What condition is SE 4th Avenue over Graveyard Gulch 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 2021.

How much traffic does SE 4th Avenue over Graveyard Gulch carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SE 4th Avenue over Graveyard Gulch?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 24 ft wide.

Who owns SE 4th Avenue over Graveyard Gulch?

It is owned by the County Highway Agency.