SH 99 EB over Timber Lane
Montgomery County, Texas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SH 99 EB over Timber Lane in Montgomery County, Texas, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2016, making it 9 years old at the 2025 inventory.
- It carries about 4,000 vehicles a day (traffic count year 2016).
- Its listed owner is the state highway agency.
- It is one of 477 of the 711 inventoried bridges in Montgomery County rated good (67.1%); 5 (0.7%) 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 November 2022, on a 48-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 → (30.13767, -95.27199)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 89 ft |
| Location | 1.10 Mi E of FM 1314 |
| NBI structure number | 121700351007196 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2022 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Texas department of transportation.
Busiest bridges in Montgomery County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih 45 over Drainage Ditch | 1926 | 243,893 | Fair |
| Ih 45 Sbml over Spring CR | 1990 | 243,893 | Fair |
| Ih 45 Nbml over Spring CR | 1990 | 243,893 | Fair |
| Ih 45 Sbml over Spring CR Rel | 1990 | 243,893 | Fair |
| Ih 45 Nbml over Spring CR Rel | 1990 | 243,893 | Fair |
| Ih 45 over Silverdale Crk | 2007 | 201,083 | Good |
All bridges nearby: Montgomery County, TX bridge conditions · every bridge in Montgomery County · Texas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.