US Bridges

FM 3512 over Mccampbell Slough

Fair

San Patricio County, Texas · 0.45 MI NW of FM 1069 · Structure no. 162050357801002

Built
1993
32 years old
Condition
Fair
inspected April 2024
Type
Other
Prestressed Concrete
Length
220 ft
4 main spans
Daily traffic
1,215
2023 count
Owner
State
State Highway Agency

About this bridge

FM 3512 over Mccampbell Slough is a prestressed concrete other carrying FM 3512 over Mccampbell Slough in San Patricio County, Texas. It was built in 1993, so it is 32 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 1,215 vehicles a day, roughly 10% of them trucks, projected to reach 1,812 by 2042. The structure is 220 ft (67.1 m) long and 46 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesFM 3512
CrossesMccampbell Slough
Location0.45 MI NW of FM 1069
RouteState Highway 3512
CountySan Patricio County
StateTexas
Coordinates27.90579, -97.19981
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum 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

Structure typeOther
MaterialPrestressed Concrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span55 ft (16.8 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,215 (2023)
Projected traffic1,812 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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 3512 over Mccampbell Slough built?

It was built in 1993, making it 32 years old in 2025.

What condition is FM 3512 over Mccampbell Slough 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 April 2024.

How much traffic does FM 3512 over Mccampbell Slough carry?

About 1,215 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is FM 3512 over Mccampbell Slough?

The structure is 220 ft (67.1 m) long with a longest span of 55 ft (16.8 m) and a deck 46 ft wide.

Who owns FM 3512 over Mccampbell Slough?

It is owned by the State Highway Agency.