US Bridges

New Hope RD over Grizzley Slough

Fair

Sacramento County, California · 0.5 MI N Sa Joqun CO Line · Structure no. 24C0168

Built
1931
94 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
206 ft
14 main spans
Daily traffic
1,785
2009 count
Owner
County
County Highway Agency

About this bridge

New Hope RD over Grizzley Slough is a concrete continuous slab carrying New Hope RD over Grizzley Slough in Sacramento County, California. It was built in 1931, so it is 94 years old, older than the California average of 54.8 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 1,785 vehicles a day, roughly 10% of them trucks, projected to reach 2,320 by 2046. The structure is 206 ft (62.8 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNew Hope RD
CrossesGrizzley Slough
Location0.5 MI N Sa Joqun CO Line
RouteCounty Highway 0
CountySacramento County
StateCalifornia
Coordinates38.23989, -121.41407
Functional classRural Major Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating20.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans14
Design loadUnknown
Structure length206 ft (62.8 m)
Longest span15 ft (4.6 m)
Deck width24 ft (7.4 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,785 (2009)
Projected traffic2,320 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was New Hope RD over Grizzley Slough built?

It was built in 1931, making it 94 years old in 2025.

What condition is New Hope RD over Grizzley Slough 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 October 2024.

How much traffic does New Hope RD over Grizzley Slough carry?

About 1,785 vehicles per day (2009 count), of which roughly 10% are trucks.

How long is New Hope RD over Grizzley Slough?

The structure is 206 ft (62.8 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.

Who owns New Hope RD over Grizzley Slough?

It is owned by the County Highway Agency.