CR 420 over Clarks Creek
Lavaca County, Texas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- CR 420 over Clarks Creek in Lavaca County, Texas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1989, making it 36 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2012).
- Its listed owner is the county highway agency.
- It is one of 121 of the 262 inventoried bridges in Lavaca County rated fair (46.2%); 10 (3.8%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated January 2024, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (29.29748, -97.02726)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Length | about 137 ft |
| Location | 0.85 Mi SW of FM 531 |
| NBI structure number | 131430AA0400001 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | January 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Texas department of transportation.
Busiest bridges in Lavaca County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 77 over Lavaca River | 1925 | 14,949 | Fair |
| US 90A over Brushy Creek | 2015 | 8,496 | Good |
| US 77A over Spring Branch | 1924 | 7,210 | Fair |
| US 77A over Smothers Creek | 1924 | 7,210 | Good |
| US 77A/US 90A over Smothers Creek Relief | 1930 | 7,210 | Fair |
| US 77 over West Navidad River | 1958 | 6,738 | Good |
All bridges nearby: Lavaca County, TX bridge conditions · every bridge in Lavaca County · Texas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.