US Bridges

FM 1409 over Big Ditch

Good

Liberty County, Texas · 5.7 Mi. SE of US 90 · Structure no. 201460076202011

Built
2009
16 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
740 ft
7 main spans
Daily traffic
4,698
2022 count
Owner
State
State Highway Agency

About this bridge

FM 1409 over Big Ditch is a prestressed concrete stringer/multi-beam or girder carrying FM 1409 over Big Ditch in Liberty County, Texas. It was built in 2009, so it is 16 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 4,698 vehicles a day, roughly 14% of them trucks, projected to reach 4,410 by 2033. The structure is 740 ft (225.6 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM 1409
CrossesBig Ditch
Location5.7 Mi. SE of US 90
RouteState Highway 1409
StateTexas
Coordinates29.97365, -94.84448
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length740 ft (225.6 m)
Longest span120 ft (36.6 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,698 (2022)
Projected traffic4,410 by 2033
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 1409 over Big Ditch built?

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

What condition is FM 1409 over Big 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 April 2024.

How much traffic does FM 1409 over Big Ditch carry?

About 4,698 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is FM 1409 over Big Ditch?

The structure is 740 ft (225.6 m) long with a longest span of 120 ft (36.6 m) and a deck 46 ft wide.

Who owns FM 1409 over Big Ditch?

It is owned by the State Highway Agency.