Texas loop highways that keep their number when crossing into other states

[bugo]

TX loop 151 now becomes AR 151 at the state line.  Do any other Texas loop or spur routes continue across a state line with the same number?

[Road Hog]

TX loop 151 now becomes AR 151 at the state line.  Do any other Texas loop or spur routes continue across a state line with the same number?

As far as loops or spurs, I'm guessing this the first and only one since Texarkana is the only significant urban area in Texas that spills over into another state.

A number of straight-up state highways keeps the numbering (37 and 91 across the Red River, and 18 and 114 into NM are a few examples). 114 may be the longest continuous triple-digit state highway in the country since it terminates in Dallas.

[NE2]

114 may be the longest continuous triple-digit state highway in the country since it terminates in Dallas.

MT 200 is almost twice as long (and according to Wikipedia is the longest state-numbered highway period).

As for the original question, I see nothing else here:
http://www.google.com/search?q=site%3Ahttp%3A%2F%2Fwww.dot.state.tx.us%2Ftpp%2Fhwy%2Fsl+"state+line"
http://www.google.com/search?q=site%3Ahttp%3A%2F%2Fwww.dot.state.tx.us%2Ftpp%2Fhwy%2Fss+"state+line"
Only four loops or spurs that go to the state line; 151 is the only one that's not an old alignment of a U.S. Route.

[rte66man]

114 may be the longest continuous triple-digit state highway in the country since it terminates in Dallas.

MT 200 is almost twice as long (and according to Wikipedia is the longest state-numbered highway period).

Darn, I would have lost that bet as I would have wagered CA1 was the longest in the country. 

rte66man

[agentsteel53]

I think CA-1 is second to MT-200; then my guess for the next one is OK-3.

I wonder what the longest one was, historically.  1934-35 CA-7 (now US-395/CA-14/I-5/I-405/CA-107, approximately) would be a contender if it didn't have that break in Nevada.

[TheStranger]

I wonder what the longest one was, historically.  1934-35 CA-7 (now US-395/CA-14/I-5/I-405/CA-107, approximately) would be a contender if it didn't have that break in Nevada.

When that Route 7 existed, was the section through Reno a "Nevada Route 7" or did the route just magically restart at Hallelujah Junction?

Could even be a case where CSAA signing of Route 7 wasn't completed when US 395 was applied to that corridor.

[agentsteel53]

When that Route 7 existed, was the section through Reno a "Nevada Route 7" or did the route just magically restart at Hallelujah Junction?

I do not know what number that Nevada state route had, but I actually believe it was not 7.  I have seen a 1920s ACSC diamond guide sign which had 7 on what is now the US-93 corridor.  that may have been moved between 1926 and 1934; someone who has a relevant map would have to help me out here.

Could even be a case where CSAA signing of Route 7 wasn't completed when US 395 was applied to that corridor.

a distinct possibility.  I've never seen a CSAA route 7 bear shield.  nor have I seen ACSC bear 95, which is the segment of 395 between 6 aka 14, and 66 aka 66/91 aka I-15.

[NE2]

I wonder what the longest one was, historically.  1934-35 CA-7 (now US-395/CA-14/I-5/I-405/CA-107, approximately) would be a contender if it didn't have that break in Nevada.

Most likely pre-1939 Texas SH 1, New Mexico (northwest of El Paso) to Arkansas (Texarkana). Currently 830 miles by Interstate.

[Brian556]

Texas 99/ OK 99 (before it became US 377). When Texas 10 was extended over Lk Texoma to connect with OK 99, it became TX 99 for continuity purposes. This situation ceased to exist in 1969 when US 377 was extended north of Denton, TX over this route.

[bugo]

OK 99 turns into K-99 which changes into NE 99, which means this three state highway used to go through 4 states.