US Bridges

31 NE over Arbuckle Draw

Good

Grant County, Washington · 31 NE .4 East of Pinto · Structure no. 086058000000000

Built
1994
31 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
65
2017 count
Owner
County
County Highway Agency

About this bridge

31 NE over Arbuckle Draw is a prestressed concrete tee beam carrying 31 NE over Arbuckle Draw in Grant County, Washington. It was built in 1994, so it is 31 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 65 vehicles a day, roughly 34% of them trucks, projected to reach 93 by 2043. The structure is 92 ft (28 m) long and 30 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Carries31 NE
CrossesArbuckle Draw
Location31 NE .4 East of Pinto
RouteCounty Highway 51600
Coordinates47.54164, -119.26672
Functional classRural Minor Collector

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating34.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length92 ft (28 m)
Longest span91 ft (27.7 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2017)
Projected traffic93 by 2043
Trucks34%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 31 NE over Arbuckle Draw built?

It was built in 1994, making it 31 years old in 2025.

What condition is 31 NE over Arbuckle Draw 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 October 2023.

How much traffic does 31 NE over Arbuckle Draw carry?

About 65 vehicles per day (2017 count), of which roughly 34% are trucks.

How long is 31 NE over Arbuckle Draw?

The structure is 92 ft (28 m) long with a longest span of 91 ft (27.7 m) and a deck 30 ft wide.

Who owns 31 NE over Arbuckle Draw?

It is owned by the County Highway Agency.