D3 motorway (Praha – Tábor – České Budějovice – Dolní Dvořiště)

ŘSD stavba 0301, km 4.000 to 13.522, with tunnels totalling 3207 m. The notice of the zoning proceeding was published on 20 August 2025. Driving of a 1617 m exploratory adit for the Kamenná Vrata tunnel began on 29 August 2025 and is set to last 29 months. The leaflet (04/2026) plans the tender in 2027, construction from 2028 and opening in 2032. Drawn from the OSM proposed way, cut in proportion to the sourced section lengths.

ŘSD stavba 0302, km 13.522 to 17.908, with the 1843 m Luka tunnel and the Sázava bridge. The notice of the zoning proceeding was published on 20 August 2025. An exploratory adit for the Luka tunnel has been driven since March 2025. The leaflet (04/2026) plans the tender in 2027, construction from 2028 and opening in 2032. Drawn from the OSM proposed way, cut in proportion to the sourced section lengths.

ŘSD stavba 0303, km 17.908 to 29.198, with tunnels totalling 946 m. The notice of the zoning proceeding was published on 20 August 2025 and objections are being settled. The leaflet (04/2026) plans the tender in 2027, construction from 2028 and opening in 2032. Drawn from the OSM proposed way, cut in proportion to the sourced section lengths.

ŘSD stavba 0304, km 29.200 to 45.040, with the 950 m Prostřední Vrch tunnel. The ÚR was issued on 10 February 2026 and appeals are pending. The leaflet (04/2026) plans the tender in 2027, construction from 2028 and opening in 2032. On 1 October 2026 ŘSD started driving an 838 m exploratory adit, named Žofie, for the tunnel; the work is priced at CZK 248 million excluding VAT and runs until October 2027. It is a ground survey, separate from this section's construction. Drawn from the OSM proposed way, cut in proportion to the sourced section lengths.

ŘSD stavba 0305/I, km 45.040 to 62.400, the last Central Bohemian section. The zoning decision (ÚR) was issued on 27 November 2025 and is not yet final because appeals are pending. The leaflet (04/2026) plans the tender in 2027, construction from 2028 and opening in 2032. Drawn from the OSM proposed way, cut in proportion to the sourced section lengths; the OSM way stops about 0.4 km short of the opened Nová Hospoda – Mezno section.

ŘSD stavba 0305/II, the northern end of the opened motorway. Length and dates from the cs.wikipedia section table: half profile built from April 2007 and opened in December 2007, full profile built from July 2008 and opened in December 2009. The half profile is recorded as a partial opening and the full profile as the opening. OSM draws the road to a temporary connection at Mezno; the drawn length is 3% under the recorded length, split proportionally from Mezno – Chotoviny.

ŘSD stavba 0306/I. Opened on 17 December 2007 (cs.wikipedia text). The section table gives construction start 05/2004 while the text says it was built from 2005, so no start date is recorded. Length from the section table. The cut with Nová Hospoda – Mezno is proportional to the two sourced lengths along the OSM line, since no junction node marks it.

ŘSD stavby 0306/IIA to IID, Chotoviny – Čekanice, including the Čekanice bridge. The length is the four cs.wikipedia section lengths added up: 3.25, 1.02, 0.474 and 0.536 km. Construction started in February 2002 and the first part opened in October 2004. Parts of 0306/IIB to IID had a half profile from 1991–1994 and reached full profile between October 2004 and June 2005. cs.wikipedia names Chotoviny – Čekanice (8.3 km, October 2004) as the first part of D3 to open. Cut at the Čekanice and Chotoviny junction nodes.

ŘSD stavba 0306/III, the Tábor bypass between the Čekanice and Měšice junctions. Dates and length from the cs.wikipedia section table; no leaflet was read. Built from 1988 and opened in 1991 but not marked as a motorway; it was reclassified as part of D3 in 2013. A missing 400 m of the second carriageway was finished in August 2024 after a 25-year dispute over access to a motorcycle centre. Cut at the Měšice and Čekanice junction nodes.

ŘSD stavba 0307, with junctions Planá nad Lužnicí and Soběslav. Dates and length from the cs.wikipedia section table; no leaflet was read. Started in September 2008 and opened on 28 June 2013, together with 0308AB. The same work rebuilt the 1980s and 1990s sections between Stoklasná Lhota and Měšice. Cut at the Soběslav and Měšice junction nodes; the drawn length is 4% under the recorded length.

ŘSD stavba 0308AB, with junctions Dráchov and Veselí nad Lužnicí-sever. Dates and length from the cs.wikipedia section table; no leaflet was read. Started in January 2009 and opened on 28 June 2013 together with 0307. The Veselí nad Lužnicí bypass of the 1990s, built as one carriageway, was completed to full profile in this work. Drawn from the Soběslav junction to the start of 0308C; the drawn length is 3% under the recorded length.

ŘSD stavba 0308C, km 104.135 to 109.260. It widened the existing half-profile road I/3 (category D 26.5) to a full motorway profile (D 27.5/120). The old half-profile road is not modelled as a separate lot. The start ceremony was held on 7 April 2015 and opening on 12 October 2017. The contractor is a Strabag and Eurovia joint venture.

ŘSD stavba 0309/I, km 109.259 to 117.396, a new route. The tender was announced on 28 November 2014 and drew no objections. The start ceremony was held on 22 September 2015 and works began in earnest in February 2016. A peat bog under the bridge over the Bukovský potok was deeper than expected. Opened on 24 June 2019. Pragoprojekt prepared the construction design.

ŘSD stavba 0309/II, km 117.400 to 128.080. Ten bidders took part and Eurovia CS offered the lowest price, CZK 933 million excluding VAT. The start ceremony was held on 15 March 2017; the leaflet gives the construction start as 12/2016. The first half profile, a new carriageway, opened on 18 December 2018 and traffic then moved onto it while the existing road I/3 was rebuilt as the second carriageway. The full profile opened on 10 December 2019. The old I/3 road is not modelled as a separate lot, so the lot shows as opened only from the full opening.

ŘSD stavba 0309/III, ending at km 131.240 behind MÚK Úsilné; the first of the České Budějovice bypass sections to open. The start ceremony was held on 7 April 2015 and opening on 27 September 2017. The contractor is a joint venture of Eurovia and Strabag.

ŘSD stavba 0310/I, km 131.240 to 138.437, including the 999.5 m cut-and-cover Pohůrka tunnel. A second tender round started in January 2018. The site was handed over on 15 April 2019, works began on 23 April and the start ceremony was on 17 April 2019. In July 2020 the tunnel method was changed to a cast-in-place box in an open pit because of groundwater; works on the tunnel resumed in March 2021. Opened on 21 December 2024.

ŘSD stavba 0310/II, km 138.437 to 150.973. The site was handed over on 20 February 2019 and works began on 1 March 2019; the start ceremony was on 29 March 2019. A slope near Rožnovský les (km 141.9–142.2) showed instability from late 2019 and an old underground working was found at km 138.6. The leaflet does not state the contract signing date. Opened on 21 December 2024.

ŘSD stavba 0311, km 150.973 to 159.512. The tender was announced in September 2020; the original plan to start in 2021 slipped over a dispute about the references of one bidder (cs.wikipedia). The start ceremony was held on 4 February 2022. Opened on 21 December 2024 together with 0310/I and 0310/II.

ŘSD stavba 0312/I, stage 1, from the end of 0311 at Kaplice nádraží (km 159.55) to MÚK Kaplice (km 165.325). The leaflet gives the length as 5785 m. The contract covers both stages of 0312/I: CZK 4295.57 million excluding VAT against an estimate of CZK 6182 million, signed on 14 June 2024. That price is not split by stage and is left out of the cost fields. The leaflet (04/2026) and the ŘSD press release of 31 July 2026 both expect opening in November 2026. OSM maps this stage as construction ways, with a few short motorway ways at the Kaplice junction.

ŘSD stavba 0312/I, stage 2, from MÚK Kaplice (km 165.325) to km 171.540 where Nažidla – border begins. The leaflet gives the length as 6215 m. The contract covers both stages of 0312/I: CZK 4295.57 million excluding VAT against an estimate of CZK 6182 million, signed on 14 June 2024 after four bids. That price is not split by stage and is left out of the cost fields. The leaflet (04/2026) expects opening in 07/2027; the ŘSD director general said in July 2026 that opening is wanted in June 2027. The cut with stage 1 follows the sourced chainage. OSM maps this stage as construction ways.

ŘSD stavba 0312/II, km 171.540 to about km 174.7, excluding the 384 m border section. Almost all of it follows the line of the old road I/3. Five bids were received for the contract and the start ceremony was held on 9 January 2024. Traffic moved onto the finished half profile on 29 August 2025 while the second half was built. ŘSD opened it on 31 July 2026 with a temporary connection to the Austrian road network at the border. Drawn length is 13% under the sourced length: OSM has no D3 way for the first 0.3 km at the border end.

ŘSD stavba 0312/II, the last 384 m to the Austrian border. The Nažidla – border leaflet says it will be built together with the Austrian S10, so the 3.16 km before it opened with a temporary connection to the Austrian network. The ŘSD stavby dataset lists it as in preparation with works from 2029 and completion in 2032; cs.wikipedia gives 2029 and 2033, citing a May 2026 ŘSD leaflet that could not be opened. No date is recorded here. Drawn from the OSM proposed ways.