US Bridges

SR 17 over Rocky Ford CR

Fair

Grant County, Washington · 12.7 N JCT SR 171 · Structure no. 0004840B0000000

Built
1955
70 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete Continuous
Length
105 ft
5 main spans
Daily traffic
9,836
2023 count
Owner
State
State Highway Agency

About this bridge

SR 17 over Rocky Ford CR is a concrete continuous slab carrying SR 17 over Rocky Ford CR in Grant County, Washington. It was built in 1955, so it is 70 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 9,836 vehicles a day, roughly 6% of them trucks, projected to reach 11,443 by 2039. The structure is 105 ft (32 m) long and 34 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

Location

Open in Google Maps
CarriesSR 17
CrossesRocky Ford CR
Location12.7 N JCT SR 171
RouteState Highway 17
CountyGrant County
StateWashington
Coordinates47.26137, -119.45568
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length105 ft (32 m)
Longest span19 ft (5.8 m)
Deck width34 ft (10.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,836 (2023)
Projected traffic11,443 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 17 over Rocky Ford CR built?

It was built in 1955, making it 70 years old in 2025.

What condition is SR 17 over Rocky Ford CR 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 September 2023.

How much traffic does SR 17 over Rocky Ford CR carry?

About 9,836 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SR 17 over Rocky Ford CR?

The structure is 105 ft (32 m) long with a longest span of 19 ft (5.8 m) and a deck 34 ft wide.

Who owns SR 17 over Rocky Ford CR?

It is owned by the State Highway Agency.