US Bridges

I Street over Parking Lot

Good

Sacramento County, California · 03-SAC-005-23.80-SAC · Structure no. 24 0351J

Built
1937
88 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
160 ft
3 main spans
Daily traffic
6,000
2015 count
Owner
State
State Highway Agency

About this bridge

I Street over Parking Lot is a steel continuous stringer/multi-beam or girder carrying I Street over Parking Lot in Sacramento County, California. It was built in 1937, so it is 88 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 6,000 vehicles a day, roughly 2% of them trucks, projected to reach 6,864 by 2047. The structure is 160 ft (48.8 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI Street
CrossesParking Lot
Location03-SAC-005-23.80-SAC
RouteCity Street 5
Coordinates38.5851, -121.50356
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating21.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length160 ft (48.8 m)
Longest span68 ft (20.7 m)
Deck width46 ft (14.1 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic6,000 (2015)
Projected traffic6,864 by 2047
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 I Street over Parking Lot built?

It was built in 1937, making it 88 years old in 2025.

What condition is I Street over Parking Lot 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 February 2025.

How much traffic does I Street over Parking Lot carry?

About 6,000 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is I Street over Parking Lot?

The structure is 160 ft (48.8 m) long with a longest span of 68 ft (20.7 m) and a deck 46 ft wide.

Who owns I Street over Parking Lot?

It is owned by the State Highway Agency.