US Bridges

Bent Twig Lane over Redhill Channel

Good

Orange County, California · 0.1 Mi. Nw/O Browning Ave · Structure no. 55C0574

Built
1980
45 years old, rebuilt 1989
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
500
2018 count
Owner
County
County Highway Agency

About this bridge

Bent Twig Lane over Redhill Channel is a concrete culvert carrying Bent Twig Lane over Redhill Channel in Orange County, California. It was built in 1980 and reconstructed in 1989, so it is 45 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 937 by 2041. The structure is 29 ft (8.8 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBent Twig Lane
CrossesRedhill Channel
Location0.1 Mi. Nw/O Browning Ave
RouteCounty Highway 0
Coordinates33.73876, -117.8017
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: 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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span9 ft (2.7 m)
Deck width45 ft (13.7 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2018)
Projected traffic937 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Bent Twig Lane over Redhill Channel built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 1989.

What condition is Bent Twig Lane over Redhill Channel 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 October 2023.

How much traffic does Bent Twig Lane over Redhill Channel carry?

About 500 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Bent Twig Lane over Redhill Channel?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.7 m) and a deck 45 ft wide.

Who owns Bent Twig Lane over Redhill Channel?

It is owned by the County Highway Agency.