34:
48:
20:
303:
268:
244:
298:
197:
192:
187:
182:
177:
171:
165:
160:
155:
150:
145:
293:
134:
129:
124:
119:
114:
104:
99:
94:
89:
84:
224:
25:
39:
61:
66:
33:
287:
53:
272:
248:
228:
47:
15:
19:
212:
This category has the following 3 subcategories, out of 3 total.
73:
79:
8:
304:Buildings and structures completed in 1975
269:Transport infrastructure completed in 1975
245:Energy infrastructure completed in 1975
299:Infrastructure completed in the 1970s
7:
294:Infrastructure by year of completion
265:
214:
206:
14:
46:
32:
18:
1:
320:
59:
225:Dams completed in 1975
26:Architecture portal
40:Engineering portal
70:completed in the
311:
274:
267:
250:
230:
56:
51:
50:
42:
37:
36:
28:
23:
22:
319:
318:
314:
313:
312:
310:
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308:
284:
283:
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264:
255:
252:
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235:
232:
231:
205:
204:
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202:
140:
139:
78:
52:
45:
38:
31:
24:
17:
12:
11:
5:
317:
315:
307:
306:
301:
296:
286:
285:
278:
277:
263:
262:
259:
256:
254:
253:
243:
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233:
223:
222:
219:
216:
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210:
207:
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195:
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185:
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168:
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158:
153:
148:
142:
141:
138:
137:
132:
127:
122:
117:
112:
107:
102:
97:
92:
87:
81:
80:
67:infrastructure
58:
57:
43:
29:
13:
10:
9:
6:
4:
3:
2:
316:
305:
302:
300:
297:
295:
292:
291:
289:
270:
266:
261:
260:
257:
246:
241:
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226:
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209:Subcategories
208:
199:
196:
194:
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169:
167:
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136:
133:
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108:
106:
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101:
98:
96:
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88:
86:
83:
82:
76:
75:
69:
68:
63:
55:
49:
44:
41:
35:
30:
27:
21:
16:
211:
170:
109:
71:
65:
54:1970s portal
273:(7 C, 10 P)
288:Categories
62:category
64:is for
249:(39 P)
229:(40 P)
198:2020s
193:2010s
188:2000s
183:1990s
178:1980s
172:1970s
166:1960s
161:1950s
156:1940s
151:1930s
146:1920s
72:year
60:This
135:1980
130:1979
125:1978
120:1977
115:1976
110:1975
105:1974
100:1973
95:1972
90:1971
85:1970
74:1975
290::
271:
247:
227:
258:T
238:E
218:D
77:.
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