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Discussion Starter #1 (Edited)
I wonder how expensive is construction 1 km motorway and expressway road is in your country.
You may write examples of road sections which was build in last years. Please remember write some informations about road standard (motorway or expressway, lanes amount, asphalt or concrete, plain terrain or mountains, tunnels ect.)

Some examples from Poland are below. Prices are very variable. I used rate exchange 4.30 PLN/EUR in the calculations.


S2/S79 south bypass of Warsaw (3 lanes expressway, asphalt, urban terrain) 8.9 km - 29.3 mln EUR/km (126 mln PLN/km)

A1 Pyrzowice - Piekary Sl.(motorway, 2 lanes, asphalt, plain terrain) 16 km - 26 mln EUR/km (113 mln PLN/km)

S69 Bielsko-Biala - Zywiec (2 lanes expressway, mountains but no tunnels, asphalt) 15.6 km - 11.6 mln EUR/km (50 mln PLN/km)

A1 Piątek-Stryków (2 lanes motorway, asphalt, plain terrain) 21 km - 6.3 mln EUR/km (27 mln PLN/km)

S8 Syców - Kępno (2 lanes expressway, asphalt, plain terrain) 15.3 km - 4.9 mln EUR/km (21 mln PLN/km)

A4 Zgorzelec - Krzyżowa (motorway, 2 lanes, concrete, plain terrain) 51.4 km - 4.6 mln EUR/km


Very accurate statistic about roads building costs in Poland created @Maya83 in post http://www.skyscrapercity.com/showpost.php?p=57784799&postcount=7. Prices per 1 kilometr in PLN are in last column of tables ("cena za km")
 

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USA
According to MI DOT
A mile of freeway through an urban area costs approximately $39 million, while a mile of freeway through a rural area costs approximately $8 million.
according to the FHWA (2006 Dollars)
The cost to construct one lane-mile of a typical 4-lane divided highway can range from $3.1 million to $9.1 million per lane-mile in rural areas depending on terrain type and $4.9 million to $19.5 million in urban areas depending on population size.
However, in urban areas restrictions (high cost of additional right-of-way, major utility relocation, high volume traffic control, evening work restrictions, etc.) may increase the cost per lane-mile. If restrictions exist the cost to construct one lane-mile of a 4-lane divided highway can range from $16.8 million to $74.7 million. The cost of $74.7 million perlane-mile in areas of severe restrictions may not represent the maximum cost per-lanemile and should be used as general guideline only. Individual projects may include extreme conditions warranting a much higher cost. The costs provided are per lane-mile.
To obtain the cost for a section of roadway the cost
would need to be multiplied by the number of lanes on the roadway section.
 

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The Netherlands has constructed too little mileage in the past 10 years to give a reliable number. The last links are missing links which are generally expensive (€ 50+ million per kilometer often).
 

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Discussion Starter #4
The cost to construct one lane-mile of a typical 4-lane divided highway can range from $3.1 million to $9.1 million per lane-mile in rural areas depending on terrain type
I shocked by low cost of roads building in USA. What are reasons? Maybe low oil cost in USA which have impact to asphalt cost?
 

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In Bulgaria currently under construction are: Trakiya Hoghway (three stretches) first stretch - constructor is bulgarian company Trace with price 2,217 mln.euro/km , second stretch constructor is greek company Actor with price 1,9 mln.euro/km. , third stretch constructor is bulgarian Holding Roads with price 2,247 mln.euro/km. The other highway under construction in Bulgaria is Maritsa (two stretches) first stretch - constructor is Chimetisti Ravena Italy with price 2.12 mln.euro/km, second stretch price 1,82mln.euro/km. - constructor Holding Roads (all the prices excl VAT).
 

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middle lane hogger
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according to DARS, the average cost from 1994-2008 was 10,4mln € per km.

the lowest was A3 Divaca-Dane (2,3mln €), the highest famous section of A2 with Sentvid tunnel (47,1mln €), highest non-urban was A1 at Trojane pass (25,6mln €).
 

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Hass
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Spain: from 3,10 to 13,35 million €/km.

P.D.: The price doesn't include commission's for politicians. I should be no more than 5 ~ 10 % of the cost per km. :lol:
 

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Небостъ&
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In Bulgaria ...
To add some info, the highest price of motorway construction was of A5 Lyulin, which was about 9.7-9.8 mln euros/km.
Most expensive stretch of motorway is still to come in EU-financial period 2014-2020 - LOT3 of A6 Struma from Blagoevgrad to Sandanski, which will include a 13 km tunnel or a sequence of tunnels and viaducts in the Natura2000 protected area of Kresna Gorge, and is expected to cost more than a 1 mlrd euro.
 

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Spain:

Code:
Road costs (average prices):
         Building:
             Conventional road: € 3M/km.
             Motorway: € 4M/km.
             Over/underpasses: € 700/m2. 
         Maintenance (annual cost):
             Secondary road: € 6,000/km.
             Main road: € 9,000/km .
             High-capacity road: € 18,000/km.
             Motorway: € 42,000/km.
         Pothole repair: Between € 35,000/km - € 65,000/km.
         Cleaning: € 45/km

     Information cost:
         Integrated management systems which collect traffic information: from € 40,000 to 140,000.
         Data collection cameras: € 6,000.
         Weather Station: € 32,000.
         Electronic Signpost: € 42,000.
         Laser Radar: € 40,000.

     Signs cost:
         Replacing a demolished sign: € 145 to 300.
         Sign cleaning (removing graffiti): € 45-75.
         For example, the cost of switching signals to 110 km/h which was carried on last year was estimated at € 250,000  (about € 40/sign).

     Accidents cost:
         Emergency equipment mobilization € 772/unit.
         Daily cost of maintaining each mobile Intensive Care Unit: € 3,100.
         Mobilization of a helicopter (for rural areas which are difficult to reach by other means): € 3,642.
         Activate a medical helicopter: € 6,800.
         Fire fighters: € 3,000.
         Subsequent cleaning of the road: € 600.

Source: http://www.tecnocarreteras.es/web/i...rvicios-que-garantizan-nuestra-seguridad-vial
 

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Land expropriation cost can add significantly to the overall construction cost, especially in semi-urban and urban areas. Land in Europe is generally not as cheap as in the United States. The U.S. density is much lower than in Europe, for instance the low density Dutch province of Drenthe has 190 inhabitants/km² while this is only 41 inh/km² in Wisconsin and 43 inh/km² in Kentucky, to name a few states which are not considered sparsely populated.
 

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The Road and Map Geek
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Well... It depends...

I depends heavily on the number of exits and bridges, the terrain, the economic situation, winter conditions, and whether it is a urban or rural one. Comparisons across countries is difficult, because planning, land, and bureaucracy cost are allocated differently.

Some samples of recent cases in Finland:

3/E12 Tampere west bypass, open 2009, upgrade 1+1 to 2+2, most exits rebuilt, double bridge over Lake Pyhäjärvi: 21 km, 114 MEUR, 5.4 MEUR/km.

1/E18 Lohja-Muurla, open 2009, 2+2, challenging terrain, 7 twin-tube tunnels total length 5.7 km, 75 bridges, 8 exits, animal fence: 51 km, 330 MEUR, 6.5 MEUR/km. Public Private Partnership model (PPP).

7/E18 Koskenkylä-Kotka, under construction, open 2014. 17 km upgrade 1+1 to 2+2, 34 km new 2+2 motorway. 6 new exits, 68 bridges, one short twin-tube tunnel, telematics, animal fence, some upgrade on current motorway in Kotka. 51 km, 340 MEUR, 6.7 MEUR/km. PPP Model.

51 Espoonlahti-Kirkkonummi, under construction, open 2012, 2+2 replacing the current 1+1 road in the same aligment, new parallel local roads, 3 new exits, major upgrade to one exit. 10 km, 80 MEUR, 8 MEUR/km.

6 Lappeenranta-Imatra, open 2012, 2+2 "almost motorway", with middle barrier, replacing the old 1+1 road in the same alignment. 6 new and 9 upgraded exits, 35 km animal fence, illumination, 22 km noise barriers, somewhat challenging crossing with Saimaa Canal. 48 km, 177 MEUR, 3.7 EUR/km.

100 between 3/E12 and 45, Helsinki, "Ring Zero of Helsinki", open 2009. Replacing existing 1+1 street with 2+2 road, partly 3+3. 4 exits, one twin-tube tunnel under 3/E12, 700 m 25 bridges, crosses two main railways. Construction under heavy traffic: 35,000 vehicles and 1000 trains daily. Full of existing infrastructure. 3.3 km, 100 MEUR, 30 MEUR/km.

Construction cost only, with the exception of case Road 51 where planning cost partly included in the contract.
 

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Land expropriation cost can add significantly to the overall construction cost, especially in semi-urban and urban areas. Land in Europe is generally not as cheap as in the United States. The U.S. density is much lower than in Europe, for instance the low density Dutch province of Drenthe has 190 inhabitants/km² while this is only 41 inh/km² in Wisconsin and 43 inh/km² in Kentucky, to name a few states which are not considered sparsely populated.
Exactly, also remember the environmental and especially archeological studies are usually MUCH less rigorous over here. We have different pavement/ roadbed standards and don't use the very, very, expensive porous surfaces common in Europe. In addition, some states also have "right to work" laws which can help keep costs down as well.
 

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In Kosovo there are built (completed) only 38 km of motorways, and under construction 22 more kilometers, that will be completed soon. Price is almost 8 million Euros for 1 km. Terrain is fifty-fifty plain-mountainous with few bridges, no tunnels. In this price are not calculated expropriations needed.


It is very interesting to know why the prices in Bulgaria are much cheaper than in other countries (some 2 million Euro for 1 km). Is the quality of motorways built in Bulgaria not that good, or Bulgarian authorities are honest and there is no corruption, or…
 

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^^ Many reasons I think: plain terrain, low wages; crisis in the construction sector from 2008 after the real estates bubble; and, last but not the least, clear tender procedures that were introduced by the government in 2009 which gave really competitive offers from 10 to 15 participants for each lot...
 
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