US Bridges

Or 99 (hwy 486) over Rogue River @ Gold Hill

FairPosted for load

Jackson County, Oregon · 02.9 MI S HWY 060 JCT · Structure no. 00576 271Y00265

Built
1927
98 years old, rebuilt 1947
Condition
Fair
inspected August 2023
Type
Arch - Deck
Concrete
Length
448 ft
1 main span
Daily traffic
6,174
2022 count
Owner
State
State Highway Agency

About this bridge

Or 99 (hwy 486) over Rogue River @ Gold Hill is a concrete arch - deck carrying Or 99 (hwy 486) over Rogue River @ Gold Hill in Jackson County, Oregon. It was built in 1927 and reconstructed in 1947, so it is 98 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. Its operating status is: posted for load restriction.

It carries about 6,174 vehicles a day, roughly 10% of them trucks, projected to reach 6,300 by 2042. The structure is 448 ft (136.6 m) long and 24 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

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CarriesOr 99 (hwy 486)
CrossesRogue River @ Gold Hill
Location02.9 MI S HWY 060 JCT
RouteState Highway 99
CountyJackson County
StateOregon
Coordinates42.43083, -123.04344
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.2 US tons
Inventory rating21.8 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+6 approach)
Design loadH 15
Structure length448 ft (136.6 m)
Longest span143 ft (43.6 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,174 (2022)
Projected traffic6,300 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Or 99 (hwy 486) over Rogue River @ Gold Hill built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1947.

What condition is Or 99 (hwy 486) over Rogue River @ Gold Hill 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 August 2023.

How much traffic does Or 99 (hwy 486) over Rogue River @ Gold Hill carry?

About 6,174 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Or 99 (hwy 486) over Rogue River @ Gold Hill?

The structure is 448 ft (136.6 m) long with a longest span of 143 ft (43.6 m) and a deck 24 ft wide.

Who owns Or 99 (hwy 486) over Rogue River @ Gold Hill?

It is owned by the State Highway Agency.