US Bridges

East 20th Street over Ltl Chc-But CR Div Chan

Fair

Butte County, California · 0.35 MI E of Bruce Road · Structure no. 12C0429

Built
2009
16 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
2,200
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

East 20th Street over Ltl Chc-But CR Div Chan is a prestressed concrete box beam or girders - multiple carrying East 20th Street over Ltl Chc-But CR Div Chan in Butte County, California. It was built in 2009, so it is 16 years old, younger 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 2,200 vehicles a day, roughly 3% of them trucks, projected to reach 943 by 2044. The structure is 71 ft (21.7 m) long and 50 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesEast 20th Street
CrossesLtl Chc-But CR Div Chan
Location0.35 MI E of Bruce Road
RouteCity Street 0
Coordinates39.72622, -121.78135
Functional classUrban Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length71 ft (21.7 m)
Longest span69 ft (20.9 m)
Deck width50 ft (15.2 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2015)
Projected traffic943 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 East 20th Street over Ltl Chc-But CR Div Chan built?

It was built in 2009, making it 16 years old in 2025.

What condition is East 20th Street over Ltl Chc-But CR Div Chan 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 East 20th Street over Ltl Chc-But CR Div Chan carry?

About 2,200 vehicles per day (2015 count), of which roughly 3% are trucks.

How long is East 20th Street over Ltl Chc-But CR Div Chan?

The structure is 71 ft (21.7 m) long with a longest span of 69 ft (20.9 m) and a deck 50 ft wide.

Who owns East 20th Street over Ltl Chc-But CR Div Chan?

It is owned by the City or Municipal Highway Agency.