US Bridges

N WATT-N51 on Ramp over Arcade Creek

Good

Sacramento County, California · 03-SAC-051-8.06-SAC · Structure no. 24 0126S

Built
1958
67 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
18,000
2010 count
Owner
State
State Highway Agency

About this bridge

N WATT-N51 on Ramp over Arcade Creek is a concrete continuous tee beam carrying N WATT-N51 on Ramp over Arcade Creek in Sacramento County, California. It was built in 1958, so it is 67 years old, older than the California average of 54.8 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 18,000 vehicles a day, roughly 2% of them trucks, projected to reach 26,989 by 2045. The structure is 142 ft (43.3 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN WATT-N51 on Ramp
CrossesArcade Creek
Location03-SAC-051-8.06-SAC
RouteState Highway 51
Coordinates38.64019, -121.38144
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span56 ft (17.1 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,000 (2010)
Projected traffic26,989 by 2045
Trucks2%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N WATT-N51 on Ramp over Arcade Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is N WATT-N51 on Ramp over Arcade Creek 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 November 2023.

How much traffic does N WATT-N51 on Ramp over Arcade Creek carry?

About 18,000 vehicles per day (2010 count), of which roughly 2% are trucks.

How long is N WATT-N51 on Ramp over Arcade Creek?

The structure is 142 ft (43.3 m) long with a longest span of 56 ft (17.1 m) and a deck 27 ft wide.

Who owns N WATT-N51 on Ramp over Arcade Creek?

It is owned by the State Highway Agency.