Rating:
1 vote

FM 973 Brushy Creek Crossing (Old)

Map 

Description 

Old FM973 Crossing over Brushy Creek. Bridge is still there sitting in place abandoned. You can barely see it through the trees on Google Maps.

Facts 

Overview
Abandoned Pratt through truss bridge over Brushy Creek on FM973
Location
Williamson County, Texas
Status
Derelict/abandoned
History
This is the former crossing to FM973. If you look on google maps, you can see the bridge is still there. It is a Truss bridge of some kind. A trip will have to be made to determine what type of Truss and the history surrounding it.
Builder
- Unknown
Design
Pratt through truss
Approximate latitude, longitude
+30.46982, -97.46635   (decimal degrees)
30°28'11" N, 97°27'59" W   (degrees°minutes'seconds")
Approximate UTM coordinates
14/647224/3371846 (zone/easting/northing)
Quadrangle map:
Coupland
Elevation
520 ft. above sea level
Inventory number
BH 78628 (Bridgehunter.com ID)

Categories 

5-panel truss (459)
A-frame portal (406)
Abandoned (3,129)
Lally columns (263)
Pin-connected (3,472)
Pratt through truss (4,669)
Pratt truss (8,133)
Texas (2,278)
Through truss (13,102)
Truss (29,737)
Unknown (34)
Williamson County, Texas (31)

Update Log 

  • May 8, 2018: Updated by Dave King: Added design info & categories "5-panel truss", "A-frame portal", "Pin-connected"

Comments 

FM 973 Brushy Creek Crossing (Old)
Posted May 11, 2018, by Clark Vance (cvance [at] dogmail [dot] com)

It's nice to see that the campground is making use of it, thus helping with preservation.

FM 973 Brushy Creek Crossing (Old)
Posted May 11, 2018, by Walter Poston (we [dot] poston [at] gmail [dot] com)

That helps, a lot. Thanks.

FM 973 Brushy Creek Crossing (Old)
Posted May 10, 2018, by Art S (asuckeweyru [at] knite [dot] com)

Walter,

No need to apologize. Without your pictures we'd have nothing to discuss.

The thickness of the members usually has more to do with how much load the bridge is designed to carry. A Whipple is also known as a double intersection Pratt. This simply means the tension members (the really thin pieces) diagonally cross two panels. On a Pratt, these diagonal tension members simply cross one panel (they don't pass a vertical element).

In your pictures, you can see that the thin diagonal pieces run from one panel point (joint) diagonally to the next.

Hope this helps.

Regards,

Art S.

FM 973 Brushy Creek Crossing (Old)
Posted May 10, 2018, by Walter Poston (we [dot] poston [at] gmail [dot] com)

Art, I'm sorry, I'm not very knowledgeable in bridges. I found this link and went by the pictures:

http://ftp.dot.state.tx.us/pub/txdot-info/env/historic-bridg...

By this document I figured it might be Whipple because, according to the pictures, the framing is thinner than on the Pratt.

FM 973 Brushy Creek Crossing (Old)
Posted May 8, 2018, by M C Toyer (mctoyer [at] hotmail [dot] com)

Walter - If you compare the maps cited in an earlier comment you can see that a good part of the old road alignment is still discernable and in use. It ran basically parallel on the east side of the creek north of the bridge and along the west side of the creek south of the bridge.

FM 973 Brushy Creek Crossing (Old)
Posted May 8, 2018, by Art S (asuckewer [at] knite [dot] com)

Walter,

Your pictures seem to show a five panel Pratt truss. I'd guess it's a little later - 1900 - 1915 would be my thought.

Great pics BTW.

Regards,

Art S.

FM 973 Brushy Creek Crossing (Old)
Posted May 8, 2018, by Walter Poston (we [dot] poston [at] gmail [dot] com)

It appears to be a Whipple through truss. My limited research suggests it was built between 1860 and 1890. It's hard to imagine that it was once part of FM 973 since it runs perpendicular to the current highway route.

FM 973 Brushy Creek Crossing (Old)
Posted May 4, 2018, by Clark Vance (cvance [at] dogmail [dot] com)

This crossing is on the map in 1904 and remains in 1950. The new alignment shows on the next map, dated 1984.

Looking at the NBI listings for the replacement bridge on the new alignment, a slab was built in 1950 and it was replaced in 2002 with the present bridge.

This bridge may not have closed immediately after it was bypassed but it may not have remained in use for long.

FM 973 Brushy Creek Crossing (Old)
Posted May 4, 2018, by Walter Poston (we [dot] poston [at] gmail [dot] com)

I am staying at the RV park located just south of this bridge. My daughter and I came upon it as we were exploring the park. All that remains is the metal framing. The RV park has built a wooden "fishing dock/observation area" using the west side of the bridge. I couldn't find a road for the bridge which seemed odd to me and is what made me curious enough to research it's history and why the bridge is there. I'm guessing, at one time an old dirt or county road was there.