US Bridges

FM 2004 over Chocolate Bayou

Poor

Brazoria County, Texas · 3.50 MI SW of FM 2917 · Structure no. 120200252302011

Built
1966
59 years old
Condition
Poor
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,162 ft
3 main spans
Daily traffic
6,263
2022 count
Owner
State
State Highway Agency

About this bridge

FM 2004 over Chocolate Bayou is a steel continuous stringer/multi-beam or girder carrying FM 2004 over Chocolate Bayou in Brazoria County, Texas. It was built in 1966, so it is 59 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 6,263 vehicles a day, roughly 10% of them trucks, projected to reach 8,140 by 2033. The structure is 2,162 ft (659 m) long and 31 ft wide. If it were closed, the detour would be 44.1 mi (71 km).

CarriesFM 2004
CrossesChocolate Bayou
Location3.50 MI SW of FM 2917
RouteState Highway 2004
StateTexas
Coordinates29.20998, -95.21005
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+26 approach)
Design loadH 20
Structure length2,162 ft (659 m)
Longest span240 ft (73.2 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,263 (2022)
Projected traffic8,140 by 2033
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.1 mi (71 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$140,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 2004 over Chocolate Bayou built?

It was built in 1966, making it 59 years old in 2025.

What condition is FM 2004 over Chocolate Bayou in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.

How much traffic does FM 2004 over Chocolate Bayou carry?

About 6,263 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is FM 2004 over Chocolate Bayou?

The structure is 2,162 ft (659 m) long with a longest span of 240 ft (73.2 m) and a deck 31 ft wide.

Who owns FM 2004 over Chocolate Bayou?

It is owned by the State Highway Agency.