US Bridges

S5-N99 Connector over Interstate 5

Good

Sacramento County, California · 03-SAC-005-30.11-SAC · Structure no. 24 0353F

Built
1987
38 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
324 ft
2 main spans
Daily traffic
4,000
2015 count
Owner
State
State Highway Agency

About this bridge

S5-N99 Connector over Interstate 5 is a prestressed concrete continuous box beam or girders - single or spread carrying S5-N99 Connector over Interstate 5 in Sacramento County, California. It was built in 1987, so it is 38 years old, younger 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 4,000 vehicles a day, roughly 12% of them trucks, projected to reach 11,013 by 2042. The structure is 324 ft (98.8 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesS5-N99 Connector
CrossesInterstate 5
Location03-SAC-005-30.11-SAC
RouteInterstate 5
CountySacramento County
StateCalifornia
Coordinates38.66938, -121.54364
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length324 ft (98.8 m)
Longest span178 ft (54.3 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2015)
Projected traffic11,013 by 2042
Trucks12%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was S5-N99 Connector over Interstate 5 built?

It was built in 1987, making it 38 years old in 2025.

What condition is S5-N99 Connector over Interstate 5 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 January 2025.

How much traffic does S5-N99 Connector over Interstate 5 carry?

About 4,000 vehicles per day (2015 count), of which roughly 12% are trucks.

How long is S5-N99 Connector over Interstate 5?

The structure is 324 ft (98.8 m) long with a longest span of 178 ft (54.3 m) and a deck 30 ft wide.

Who owns S5-N99 Connector over Interstate 5?

It is owned by the State Highway Agency.