FM 331 over Mill Creek
Austin County, Texas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- FM 331 over Mill Creek in Austin County, Texas, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2022, making it 3 years old at the 2025 inventory.
- It carries about 1,213 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 143 of the 218 inventoried bridges in Austin County rated good (65.6%); 4 (1.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated March 2023, 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 → (29.86967, -96.15524)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 330 ft |
| Location | 3.60 Mi S of FM 529 |
| NBI structure number | 130080040805031 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Texas department of transportation.
Busiest bridges in Austin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 10 over Draw | 2020 | 65,213 | Good |
| Ih 10 over Draw | 2020 | 65,213 | Good |
| Ih 10 over Chew/bartlett Rd | 2021 | 65,213 | Good |
| Ih 10 over FM 1458 | 2021 | 56,725 | Good |
| Mlcak Rd over Ih 10 | 2022 | 56,083 | Good |
| Ih 10 over US 90 | 2021 | 52,333 | Good |
All bridges nearby: Austin County, TX bridge conditions · every bridge in Austin County · Texas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.