US Bridges

Leland RD over Grave Creek

Fair

Josephine County, Oregon · T34S-R6W-S7 · Structure no. 132020132000366

Built
1955
70 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
1 main span
Daily traffic
512
2020 count
Owner
County
County Highway Agency

About this bridge

Leland RD over Grave Creek is a prestressed concrete stringer/multi-beam or girder carrying Leland RD over Grave Creek in Josephine County, Oregon. It was built in 1955, so it is 70 years old, older than the Oregon average of 49.9 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 512 vehicles a day, roughly 10% of them trucks, projected to reach 597 by 2025. The structure is 120 ft (36.6 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLeland RD
CrossesGrave Creek
LocationT34S-R6W-S7
RouteCounty Highway C1320
StateOregon
Coordinates42.6395, -123.4436
Functional classRural Minor Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.1 US tons
Inventory rating20.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span64 ft (19.5 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic512 (2020)
Projected traffic597 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Leland RD over Grave Creek built?

It was built in 1955, making it 70 years old in 2025.

What condition is Leland RD over Grave 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 October 2024.

How much traffic does Leland RD over Grave Creek carry?

About 512 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Leland RD over Grave Creek?

The structure is 120 ft (36.6 m) long with a longest span of 64 ft (19.5 m) and a deck 29 ft wide.

Who owns Leland RD over Grave Creek?

It is owned by the County Highway Agency.