Bowstring Bridge Multi-Cache
89SC: Closing my Bridgeport caches.
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Difficulty:
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Terrain:
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Size: 
(small)
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Another cache in downtown Bridgeport. This one visits one of the City's historic sites. It's easy terrain and good for children. You can reach the final by street if you are driving or by sidewalk if you are walking. Do not trespass on railroad property. It would be best to do the final stage on evenings or weekends. It shouldn't be done at night. Please stay away from the building. The cache is not on the building or in the flower beds.
The Bridgeport Lamp Chimney Company was founded in 1904 in Bridgeport. At it’s peak, it produced 24,000 chimneys a day and employed 174 people. The concrete bowstring bridge was built to move the chimneys on handcarts from the plant to it’s warehouse on the other side of Simpson Creek. The Master Glass Company, a marble factory, purchased the plant and moved to Bridgeport in 1941 and in 1950 took over the assets of the Akro-Agate Marble Company of Clarksburg. The company manufactured glass balls for industrial use, colored signal lenses, toy marbles, glass ball reflectors used in highway signs and guard rail posts, and other products for various industrial uses. The company ceased operations in 1973, and the City of Bridgeport bought the property. The building has been torn down, and the former site of the tannery, lamp chimney factory, and marble factory is now a parking lot for the Benedum Civic Center. The bridge is the only thing that survived and has been restored and placed on the National Register of Historic Places.
The posted coordinates will take you to a plaque next to the bridge. You will need to find the date the bridge was built and the year the bridge was placed on the National Register of Historic Places. To find the final coordinates:
Take the last two digits of the year the bridge was built and subtract 3 to get AB.
Take the last two digits of the year the bridge was placed on the Register and subtract 20 to get CD.
The final coordiates will be: N 39 17.0AB W 080 15.1CD
Hint: You can walk to the final but it's easier to drive. Note: An exception has been granted by Groundspeak Inc. for this cache placement.
Additional Hints
(Decrypt)
Gur frperg yvrf jvgu Puneybggr