SH 99 over NBMLCrossover EW4 - Ch D
Chambers County, Texas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SH 99 over NBMLCrossover EW4 - Ch D in Chambers 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 2024, making it 1 years old at the 2025 inventory.
- It carries about 3,755 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 87 of the 159 inventoried bridges in Chambers County rated good (54.7%); 3 (1.9%) 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 June 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 → (29.76486, -94.87328)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 1,100 ft |
| Location | 1.40 Mi NE of FM 565 |
| NBI structure number | 200360351010351 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| 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 Chambers County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 10 Ml over Cedar Bayou | 1999 | 104,824 | Good |
| Ih 10 over SH 99 & Hackberry Gully | 2007 | 86,090 | Fair |
| Ih 10 over Barbers Canal | 1948 | 84,431 | Good |
| Ih 10 over SH 146 | 2000 | 84,431 | Good |
| Ih 10 over Cotton Bayou | 2000 | 84,431 | Good |
| Ih 10 over FM 3180 | 2020 | 84,431 | Good |
All bridges nearby: Chambers County, TX bridge conditions · every bridge in Chambers County · Texas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.