US Bridges

Neilson RD over Intermittent Stream

Fair

Adams County, Washington · 00.15 MI N SR395 · Structure no. 081514000000000

Built
1925
100 years old, rebuilt 1976
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
28
2018 count
Owner
County
County Highway Agency

About this bridge

Neilson RD over Intermittent Stream is a steel stringer/multi-beam or girder carrying Neilson RD over Intermittent Stream in Adams County, Washington. It was built in 1925 and reconstructed in 1976, so it is 100 years old, older than the Washington average of 49.8 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 28 vehicles a day, roughly 37% of them trucks, projected to reach 35 by 2039. The structure is 23 ft (6.9 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNeilson RD
CrossesIntermittent Stream
Location00.15 MI N SR395
RouteCounty Highway 35064
CountyAdams County
StateWashington
Coordinates46.87617, -118.62935
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length23 ft (6.9 m)
Longest span21 ft (6.4 m)
Deck width22 ft (6.7 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28 (2018)
Projected traffic35 by 2039
Trucks37%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Neilson RD over Intermittent Stream built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1976.

What condition is Neilson RD over Intermittent Stream 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 Neilson RD over Intermittent Stream carry?

About 28 vehicles per day (2018 count), of which roughly 37% are trucks.

How long is Neilson RD over Intermittent Stream?

The structure is 23 ft (6.9 m) long with a longest span of 21 ft (6.4 m) and a deck 22 ft wide.

Who owns Neilson RD over Intermittent Stream?

It is owned by the County Highway Agency.