US Bridges

SH 35 over Copano Bay

Good

Aransas County, Texas · SH 35 at Copano Bay · Structure no. 160040018004079

Built
2015
10 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
11,010 ft
85 main spans
Daily traffic
7,538
2022 count
Owner
State
State Highway Agency

About this bridge

SH 35 over Copano Bay is a prestressed concrete stringer/multi-beam or girder carrying SH 35 over Copano Bay in Aransas County, Texas. It was built in 2015, so it is 10 years old, younger than the Texas average of 44.4 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 7,538 vehicles a day, roughly 10% of them trucks, projected to reach 10,252 by 2042. The structure is 11,010 ft (3,355.8 m) long and 80 ft wide. If it were closed, the detour would be 93.2 mi (150 km).

CarriesSH 35
CrossesCopano Bay
LocationSH 35 at Copano Bay
RouteState Highway 35
StateTexas
Coordinates28.12469, -97.01662
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans85 (+8 approach)
Design loadHL 93
Structure length11,010 ft (3,355.8 m)
Longest span150 ft (45.7 m)
Deck width80 ft (24.4 m)
Roadway width75 ft (23 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,538 (2022)
Projected traffic10,252 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed93.2 mi (150 km)
TollOn a free road
National Highway SystemNo
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 35 over Copano Bay built?

It was built in 2015, making it 10 years old in 2025.

What condition is SH 35 over Copano Bay 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 2024.

How much traffic does SH 35 over Copano Bay carry?

About 7,538 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is SH 35 over Copano Bay?

The structure is 11,010 ft (3,355.8 m) long with a longest span of 150 ft (45.7 m) and a deck 80 ft wide.

Who owns SH 35 over Copano Bay?

It is owned by the State Highway Agency.