Annual report pursuant to Section 13 and 15(d)

PROPERTY, PLANT AND EQUIPMENT AND LEASED FACILITIES AND EQUIPMENT

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PROPERTY, PLANT AND EQUIPMENT AND LEASED FACILITIES AND EQUIPMENT
12 Months Ended
Dec. 31, 2018
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT AND LEASED FACILITIES AND EQUIPMENT
PROPERTY, PLANT AND EQUIPMENT AND LEASED FACILITIES AND EQUIPMENT
Property, plant and equipment
Property, plant and equipment consisted of the following at December 31, 2018 and 2017 (in thousands):
 
 
 
December 31,
 
Estimated
Useful Life
 
2018
 
2017
 
(in Years)
 
 
 
 
Land
-
 
$
4,972

 
$
4,972

Buildings
25
 
34,696

 
34,653

Machinery and equipment
3 to 25
 
132,155

 
141,704

Furniture and fixtures
3 to 5
 
2,497

 
4,450

Transportation equipment
3 to 5
 
2,627

 
2,667

Improvements
15
 
42,182

 
42,975

Construction in progress
-
 
1,944

 
96

  Total property, plant and equipment
 
 
221,073

 
231,517

Accumulated depreciation
 
 
(141,143
)
 
(142,618
)
  Property, plant and equipment, net
 
 
$
79,930

 
$
88,899


Depreciation expense for 2018, 2017 and 2016, was $10.4 million, $12.9 million and $25.4 million, respectively. The reduction in depreciation expense for 2018 and 2017 is the result of classifying our South Texas Properties as assets held for sale during the first quarter of 2017, and suspending the recognition of depreciation expense for those assets.
Leased Facilities and Equipment
Lease expense for 2018, 2017 and 2016, was $1.9 million, $2.0 million and $2.5 million, respectively, related to our leased facilities and equipment. Our significant leases subject to long-term agreements are as follows: 
Corporate office lease in Houston, Texas consisting of approximately 17,000 square feet of office space. The lease expires in May 2025.
Shipyard five miles east of Jennings, Louisiana, consisting of an 180-acre complex on the west bank of the Mermentau River approximately 25 miles north of the U.S. Intracoastal Waterway that we lease from a third party. The lease expires in January 2025 with two, ten-year renewal options that allows us to extend the lease through January 2045.
Shipyard near Lake Charles, Louisiana, consisting of a ten-acre complex 17 miles from the GOM on the Calcasieu River, that we sublease from a third party. The sublease expires in July 2023 with three, five-year renewal options (subject to sublessor renewals), that allows us to extend the lease through July 2038.

Future minimum payments under leases having initial terms of one year or more are as follows (in thousands):
 
Minimum Payments
2019
$
660

2020
672

2021
680

2022
578

2023
477

Thereafter
557

    Total
$
3,624