US Bridges

Interstate 5 NB over Yolo Bypass

Fair

Yolo County, California · 03-YOL-005-0.84 · Structure no. 22 0124R

Built
1969
56 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
8,711 ft
4 main spans
Daily traffic
25,500
2015 count
Owner
State
State Highway Agency

About this bridge

Interstate 5 NB over Yolo Bypass is a prestressed concrete continuous tee beam carrying Interstate 5 NB over Yolo Bypass in Yolo County, California. It was built in 1969, so it is 56 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 25,500 vehicles a day, roughly 20% of them trucks, projected to reach 43,000 by 2040. The structure is 8,711 ft (2,655 m) long and 41 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesInterstate 5 NB
CrossesYolo Bypass
Location03-YOL-005-0.84
RouteInterstate 5
Coordinates38.67354, -121.64189
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating24.3 US tons
Inventory rating14.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4 (+208 approach)
Design loadHS 20
Structure length8,711 ft (2,655 m)
Longest span90 ft (27.5 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,500 (2015)
Projected traffic43,000 by 2040
Trucks20%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Interstate 5 NB over Yolo Bypass built?

It was built in 1969, making it 56 years old in 2025.

What condition is Interstate 5 NB over Yolo Bypass 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 August 2023.

How much traffic does Interstate 5 NB over Yolo Bypass carry?

About 25,500 vehicles per day (2015 count), of which roughly 20% are trucks.

How long is Interstate 5 NB over Yolo Bypass?

The structure is 8,711 ft (2,655 m) long with a longest span of 90 ft (27.5 m) and a deck 41 ft wide.

Who owns Interstate 5 NB over Yolo Bypass?

It is owned by the State Highway Agency.