US Bridges

FM 511 over Ccdd #1 Main Ditch

Good

Cameron County, Texas · 0.07 MI SE of SH 48 · Structure no. 210310068401011

Built
2003
22 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
12,918
2023 count
Owner
State
State Highway Agency

About this bridge

FM 511 over Ccdd #1 Main Ditch is a prestressed concrete box beam or girders - multiple carrying FM 511 over Ccdd #1 Main Ditch in Cameron County, Texas. It was built in 2003, so it is 22 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 12,918 vehicles a day, roughly 15% of them trucks, projected to reach 13,170 by 2033. The structure is 80 ft (24.4 m) long and 84 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 511
CrossesCcdd #1 Main Ditch
Location0.07 MI SE of SH 48
RouteState Highway 511
StateTexas
Coordinates25.95212, -97.41446
Functional classUrban Other Principal 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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior 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 spans1
Design loadHS 25 or greater
Structure length80 ft (24.4 m)
Longest span80 ft (24.4 m)
Deck width84 ft (25.6 m)
Roadway width82 ft (24.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,918 (2023)
Projected traffic13,170 by 2033
Trucks15%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 FM 511 over Ccdd #1 Main Ditch built?

It was built in 2003, making it 22 years old in 2025.

What condition is FM 511 over Ccdd #1 Main Ditch 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 March 2023.

How much traffic does FM 511 over Ccdd #1 Main Ditch carry?

About 12,918 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is FM 511 over Ccdd #1 Main Ditch?

The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 84 ft wide.

Who owns FM 511 over Ccdd #1 Main Ditch?

It is owned by the State Highway Agency.