Mastin St. NB over Indian Ck N Branch
Johnson County, Kansas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mastin St. NB over Indian Ck N Branch in Johnson County, Kansas, 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 1999, making it 26 years old at the 2025 inventory.
- It carries about 4,000 vehicles a day (traffic count year 2024).
- Its listed owner is a city or municipal highway agency.
- It is one of 593 of the 785 inventoried bridges in Johnson County rated good (75.5%); 12 (1.5%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated fair in the 2024 inventory and is now good (superstructure 6 to 7).
- Its most recent inspection on record is dated March 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 → (38.92921, -94.70051)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 146 ft |
| Location | 600 N of College Blvd |
| NBI structure number | 521950460000076 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Johnson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I435 Hwy WB over Indian Creek | 1965 | 89,000 | Good |
| I435 Hwy EB over Indian Creek | 1965 | 89,000 | Good |
| I435 Hwy WB over Metcalf | 1965 | 87,000 | Good |
| I435 Hwy EB over Metcalf | 1965 | 87,000 | Fair |
| Col Bvd and Pflumn over Trib. to Indian Creek | 1975 | 85,752 | Good |
| I35 Hwy NB over 67TH St | 1991 | 81,000 | Good |
All bridges nearby: Johnson County, KS bridge conditions · every bridge in Johnson County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.