US Bridges

NF Smith R RD #48A over Johnson Creek

Fair

Douglas County, Oregon · 23.0 MI NE of Reedsport · Structure no. 19C268 48A 265

Built
1984
41 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
2 main spans
Daily traffic
158
2020 count
Owner
County
County Highway Agency

About this bridge

NF Smith R RD #48A over Johnson Creek is a steel stringer/multi-beam or girder carrying NF Smith R RD #48A over Johnson Creek in Douglas County, Oregon. It was built in 1984, so it is 41 years old, younger 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 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 158 vehicles a day, roughly 10% of them trucks, projected to reach 178 by 2025. The structure is 71 ft (21.6 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNF Smith R RD #48A
CrossesJohnson Creek
Location23.0 MI NE of Reedsport
RouteCounty Highway C048A
StateOregon
Coordinates43.8202, -123.9264
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating51.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span49 ft (14.9 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic158 (2020)
Projected traffic178 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NF Smith R RD #48A over Johnson Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is NF Smith R RD #48A over Johnson 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 August 2024.

How much traffic does NF Smith R RD #48A over Johnson Creek carry?

About 158 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is NF Smith R RD #48A over Johnson Creek?

The structure is 71 ft (21.6 m) long with a longest span of 49 ft (14.9 m) and a deck 30 ft wide.

Who owns NF Smith R RD #48A over Johnson Creek?

It is owned by the County Highway Agency.