Ih 45 NB Exit Ramp over Ih 45 NB Entrance Ramp F
Montgomery County, Texas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ih 45 NB Exit Ramp over Ih 45 NB Entrance Ramp F in Montgomery 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 2012, making it 13 years old at the 2025 inventory.
- It carries about 125,607 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 229 of the 711 inventoried bridges in Montgomery County rated fair (32.2%); 5 (0.7%) are rated poor.
- 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 → (30.31828, -95.47232)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 8 | Very good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 990 ft |
| Location | 1.2 Mi SE of Lp 336 |
| NBI structure number | 121700067508227 |
| Condition class | Fair |
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.