US Bridges

Stratford RD over SR 17

Fair

Grant County, Washington · 0.9 N JCT SR 171 · Structure no. 0007818A0000000

Built
1966
59 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
161 ft
3 main spans
Daily traffic
14,235
2012 count
Owner
State
State Highway Agency

About this bridge

Stratford RD over SR 17 is a prestressed concrete continuous stringer/multi-beam or girder carrying Stratford RD over SR 17 in Grant County, Washington. It was built in 1966, so it is 59 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 6 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 14,235 vehicles a day, roughly 5% of them trucks, projected to reach 20,385 by 2036. The structure is 161 ft (49.1 m) long and 68 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesStratford RD
CrossesSR 17
Location0.9 N JCT SR 171
RouteCity Street 0
CountyGrant County
StateWashington
Coordinates47.14317, -119.27842
Functional classUrban Other Principal Arterial

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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating15.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length161 ft (49.1 m)
Longest span78 ft (23.9 m)
Deck width68 ft (20.7 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,235 (2012)
Projected traffic20,385 by 2036
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 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$4.7 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Stratford RD over SR 17 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Stratford RD over SR 17 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 June 2024.

How much traffic does Stratford RD over SR 17 carry?

About 14,235 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is Stratford RD over SR 17?

The structure is 161 ft (49.1 m) long with a longest span of 78 ft (23.9 m) and a deck 68 ft wide.

Who owns Stratford RD over SR 17?

It is owned by the State Highway Agency.