| Key Facts |
| Bridge Name | Facility Carried / Feature Intersected | Location | Structure Type | Construction Date / Builder or Contractor |
| 139th Avenue Bridge | 139th Avenue Over Black Creek | Rural: Allegan County, Michigan | Metal Riveted Warren Pony Truss, Stationary | 1920 By: Unknown |
| Technical Facts |
| Structure Length | Roadway Width | Main Spans | Approach Spans |
| 44 Feet (13.4 Meters) | 15.75 Feet (4.8 Meters) | 1 | None |
This bridge was an intact example of small warren pony truss bridge construction. The connections on the bridge were riveted. Original simple channel railings remained on the bridge. The bridge had no v-lacing or lattice making it a relatively simple looking bridge. It was a good example of late truss bridge construction in Michigan, with a 1920 construction date. The structure had appeared to have been closed within five years or so based on the lack of growth on the road leading up to the bridge when Allegan County decided to demolish and replace this quaint little bridge. Its small size should not have led to an assessment of not being significant; rather it should have led to the assessment that a restoration would not be costly.
While on a national scale the significance of this bridge is small, Michigan has so few metal truss bridges left that the preservation of each remaining structure should be pursued.
