Mo 135 S over Flat Creek
Morgan County, Missouri · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mo 135 S over Flat Creek in Morgan County, Missouri, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1966, making it 59 years old at the 2025 inventory.
- It carries about 654 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 16 of the 107 inventoried bridges in Morgan County rated poor (15.0%); 16 (15.0%) 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 December 2023, on a 24-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (38.64131, -93.01508)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 368 ft |
| Location | S 28 T 45 N R 19 W |
| NBI structure number | 1529 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 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 Missouri department of transportation.
Busiest bridges in Morgan County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mo 52 E over Str Fk Moreau CR | 2024 | 8,114 | Good |
| Mo 52 E over Straight Fork Cree | 1922 | 8,114 | Fair |
| Mo 52 E over Gabrial Creek | 1971 | 7,043 | Fair |
| Mo 52 E over Gabriel Fork | 1926 | 7,043 | Fair |
| Rt W S over Unknown CR | 1924 | 6,490 | Fair |
| Mo 5 S over Gravois Creek | 1963 | 6,024 | Poor |
All bridges nearby: Morgan County, MO bridge conditions · every bridge in Morgan County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.