28 BULLETIN 586, U. S. DEPARTMENT OF AGRICULTURE. 
The pipe used was all 24 inches in diameter and made of 14 gauge 
(U. S. standard) metal. Both galvanized and ungalvanized sheets 
were used. The culvert structures are all provided with concrete 
head walls and include from one to four lines of pipe. Table 32 gives 
the number, location, and a brief description for each culvert. In all 
cases the structure numbers are indented in the tops of the head walls. 
The engineer’s stationing, used in fixing the locations, is as follows: 
In Hays County.—Station numbers increase southward from 1,357 
at the Blanco River to station 1986, Hays-Comal County line. In 
Comal County the station numbers decrease southward from 539 +16 
(=station 1986, Hays County survey), at the Hays-Comal County 
line to 0 at the north city limits of New Braunfels, and increase south- 
ward from 539 + 16 at the south city limits of New Braunfels to 1045 + 
27 at the Comal-Guadalupe County line. 
Tables 33 and 34 show the results of laboratory analyses of samples 
taken from the galvanized and ungalvanized pipe,respectively. The 
samples in all cases were 4-inch by 6-inch rectangles, and were cut 
before the pipes were placed. 
Table 35 records the condition of the various pipes when inspected 
in March, 1917. 
TaBLE No. 32.—Locations of experimental culverts, Texas post road. 
Number 
Tenders aug culvert Station No.| lines of Description of culverts or landmarks. 
; pipe. - 
Hays County....---.--- IBHYA ll Seoneeoace South bank of Blanco River. 
INO! 62). PF acoeienikiccmones 1419 1 | Ungalvanized Bessemer steel. 
INO.65e 22 eeeteeeeeecies 1457++50 1 | Galvanized Bessemer steel. 
INGHGESES: Soe eee one 1515 1 5 Pe peenana. Shan Fh * 
158405 eee. orth city limits, San Marcos River. 
San Marcos............- UV GS | sacokenes South city limits, San Marcos River. 
INO: 4 ee certs serene 1748+-70 1 | Galvanized open-hearth steel. 
INOS sa S ee Se seen aes 1765+35 1 Oneaivenied Bessemer steel. 
. IRM ee oss sae ays County survey. 
County line............ 539-+-16 |..,....-.- Comal County survey. 
r Wy, 
No.94. 1.&G.N.R.R. 508 Galvanized copper-bearing open-hearth steel. 
crossing 
ING 7A 476+10 Ungalvanized copper-bearing iron. 
1 
1 
466-++60 1 | Ungalvanized copper-bearing steel. 
393+85 1 | Galvanized copper-bearing steel. 
No. 103. 355+00 1 | Ungalvanized ingot iron. 
North, galvanized Bessemer steel. 
4 North center, ungalvanized open-hearth steel. 
South center, galvanized open-hearth steel. 
South, ungalvanized Bessemer steel. 
MN OMTLOU ee sae ee ae 112+50 2 |sNorth, galvanized open-hearth steel. 
{South? ungalvanized open-hearth steel. 
North city limits, Guadalupe River. 
INOS 109 Shee cececcesnees 168 
New Braunfels... 12 Se { spark 9 e0 ee 
Se, Ee pout city Himits, : 
orth, galvanized ingot iron. 
No. 127....----22--2-++- 716 South; galvanized copper-bearing iron. 
No. 128 726 North, ungalvanized copper-bearing iron. 
penmialy sings Sh pie ga South, galvanized copper-bearing iron. 
’ No. 131 777 North, ungalvanized open-hearth steel. 
Railr 4 ies Wikis Showa Sw {South? ungalvanized copper-bearing open-hearth steel. 
ilroad crossing....... 49L We eek eee M.K.& T.R.R. 
Op Ber eesosneeseseeses 815 1 | Galvanized ingot iron. é 
North, galvanized copper-bearing open-hearth steel. 
No. 143 937 4 North center, galvanized copper-bearing iron. 
Gadi uted seks ete South center, ungalvanized copper-bearing iron. 
South, ungalvanized copper-bearing open-hearth steel 
INO?M48 eee seeeeeerees 1012 1 Ce Ne a sBepY ete 
North, galvanized ingot iron. 
No. 149......--------+-- 1018 2 {Bonth’ ungalvanized ingot iron. 
County line......--.-.-- TG Ee a a Comal, Guadalupe Counties. 
