US Bridges

R RD NW over Lat. Blk 73

Good

Grant County, Washington · 13 TH Avenue N · Structure no. 086096000000000

Built
1995
30 years old
Condition
Good
inspected December 2023
Type
Slab
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
385
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

R RD NW over Lat. Blk 73 is a prestressed concrete slab carrying R RD NW over Lat. Blk 73 in Grant County, Washington. It was built in 1995, so it is 30 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 385 vehicles a day, roughly 11% of them trucks, projected to reach 430 by 2040. The structure is 23 ft (7 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesR RD NW
CrossesLat. Blk 73
Location13 TH Avenue N
RouteCity Street 1040
Coordinates47.24435, -119.87516
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating21.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width35 ft (10.6 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic385 (2018)
Projected traffic430 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
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 R RD NW over Lat. Blk 73 built?

It was built in 1995, making it 30 years old in 2025.

What condition is R RD NW over Lat. Blk 73 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does R RD NW over Lat. Blk 73 carry?

About 385 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is R RD NW over Lat. Blk 73?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 35 ft wide.

Who owns R RD NW over Lat. Blk 73?

It is owned by the City or Municipal Highway Agency.