US Bridges

Herron RD NW over Von Geldern Cove Inlet

Good

Pierce County, Washington · .1 SW JCT SR302 · Structure no. 086348000000000

Built
1996
29 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
1,725
2020 count
Owner
County
County Highway Agency

About this bridge

Herron RD NW over Von Geldern Cove Inlet is a prestressed concrete stringer/multi-beam or girder carrying Herron RD NW over Von Geldern Cove Inlet in Pierce County, Washington. It was built in 1996, so it is 29 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 1,725 vehicles a day, roughly 5% of them trucks, projected to reach 2,850 by 2040. The structure is 70 ft (21.3 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHerron RD NW
CrossesVon Geldern Cove Inlet
Location.1 SW JCT SR302
RouteCounty Highway 22100
Coordinates47.26804, -122.76968
Functional classRural Major 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,725 (2020)
Projected traffic2,850 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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$2.4 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Herron RD NW over Von Geldern Cove Inlet built?

It was built in 1996, making it 29 years old in 2025.

What condition is Herron RD NW over Von Geldern Cove Inlet 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 June 2024.

How much traffic does Herron RD NW over Von Geldern Cove Inlet carry?

About 1,725 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Herron RD NW over Von Geldern Cove Inlet?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 38 ft wide.

Who owns Herron RD NW over Von Geldern Cove Inlet?

It is owned by the County Highway Agency.