San Marcos Dr over Drainage Ditch
Liberty County, Texas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- San Marcos Dr over Drainage Ditch in Liberty County, Texas, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 2019, making it 6 years old at the 2025 inventory.
- It carries about 300 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 126 of the 240 inventoried bridges in Liberty County rated good (52.5%); 4 (1.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It does not appear under this structure number in the 2024 inventory (a new or renumbered structure).
- Its most recent inspection on record is dated August 2024, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (30.15222, -95.05442)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 28 ft |
| Location | 0.6 Mi W of Community Dr |
| NBI structure number | 201460AA6495004 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Texas department of transportation.
Busiest bridges in Liberty County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 59 over Atsf RR & Drain | 1987 | 35,560 | Good |
| US 59 over Sl 573 | 1987 | 33,938 | Good |
| US 59 over SL 573 & Ditch | 1987 | 29,958 | Fair |
| US 59 over Drainage Ditch | 1987 | 29,958 | Fair |
| US 59 Ml & Sbfr over Drainage Ditch | 1987 | 29,124 | Good |
| US 59 Ml & Sbfr over Little Tarkington Bayou | 1987 | 29,124 | Fair |
All bridges nearby: Liberty County, TX bridge conditions · every bridge in Liberty County · Texas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.