Redesign of the Mühlenweg estuary

✓Additionally, there is a mandatory “Erklärung zu § 4 Abs. 1 NTVergG” on tariff compliance and minimum wages (MiLoG), which must also be provided by any envisaged subcontractors or temporary work agencies.

✓Concerning the scope of the contract (what, how much, where, when), the documents describe a construction measure “Umgestaltung Einmündung Mühlenweg / K503 in der OS Burgstemmen” with project number 10181.

✓The place of performance is the municipal road space of Nordstemmen, Germany.

✓The “Regelprofil” drawing shows, for example, a paved sidewalk structure with 4 cm Pflasterdecke on 10 cm Brechsand‑Splitt, 25 cm Schottertragschicht and 26 cm Frostschutzschicht, as well as asphalt tie-in structures and the founding of retaining walls (Winkelstützen) on concrete and mineral layers.

✓The Leistungsverzeichnis includes positions on site set‑up and clearing, soil and earthworks, drainage, cable and pipeline protection, waste disposal (for example Boden Z0 AVV 17 05 04), trench backfilling, and quality tests (for example static and dynamic plate load tests according to DIN 18134 and TP BF‑StB, test fields and waste characterisation according to LAGA Merkblatt 20).

✓Quantities are given per item in the LV (for example specific numbers of plate load tests or cubic metres of material), and all prices are to be quoted net (without VAT).

❓As to award criteria and weighting, the text provided refers extensively to formal requirements but does not explicitly state the evaluation formula or weighting of criteria such as price, quality or time.

❓The standard VOB/A framework and the wording on price (for example prohibition of “Mischkalkulationen”, statement that only unconditional percentage discounts on the settlement sum at the designated place are considered) indicate that at least a price‑based evaluation is foreseen; however, no explicit percentages or multi‑criteria weighting are included in the excerpts.

✓The documents also regulate side offers (Nebenangebote): such offers are only permissible if minimum requirements are set and fulfilled; they must be qualitatively and quantitatively equivalent to the base specification and broken down according to quantities and unit prices, otherwise they are excluded from evaluation.

✓On risks and special conditions, the documents lay down numerous obligations for the contractor.

✓For instance, the contractor bears responsibility for traffic safety at the construction site, including all traffic control measures, which must be applied for with the competent road traffic authority (ZTV SA applies).

✓Access for local residents and safe access to buildings and properties must be ensured throughout construction, including at the end of each working day.

✓The contractor must independently obtain information from utility companies on underground cables and supply and disposal lines before starting earthworks, coordinate any work in the vicinity of these lines and preserve cable markers; damage and approvals are at the contractor’s risk.

✓The contractor must also obtain permits for using classified roads and private land, bear the costs of any damage there, provide and – where the client does not supply areas – rent storage and workspaces.

✓The disposal of surface water up to acceptance is also the contractor’s responsibility, and the costs must be included in the prices.

✓Site set‑up, maintenance and dismantling, as well as winter service and cleaning, are to be priced as ancillary services in the LV items (according to DIN 18299); accordingly, no separate remuneration is granted for these tasks.

✓The contractor must review the tender and execution documents for completeness and coherence and report any unclear points, gaps or errors before starting the works.

✓Further special conditions include technical quality and testing obligations: the soil report of Dr. Pelzer und Partner (18.03.2022) forms part of the contract; all DIN and EN standards, including referenced associated standards and accident prevention regulations, apply in their latest version, and a detailed list of applicable ZTVs and technical regulations is provided (such as ZTV E‑StB, ZTV Asphalt‑StB, ZTV Pflaster‑StB, ZTV SoB‑StB, ZTV Verm, ZVB/E‑StB).

✓The contractor must submit material suitability tests at least one week before construction starts; their submission and approval are a mandatory precondition for commencement of work.

✓Ongoing self‑monitoring test results must be submitted weekly, and any control tests must be carried out by an officially approved materials testing institute; the client reserves the right to take samples and order tests.

✓Before acceptance under VOB/B, the contractor must confirm the achieved qualities and compliance of materials and execution with approvals and recognised rules of technology.

✓There are also specific technical requirements, such as hand excavation in root zones of trees and adherence to tree protection rules.

❓Regarding subcontracting, the “Verzeichnis der Nachunternehmerleistungen” (VVB 233) states that the type and scope of subcontracted partial services must be named in the offer, and – specifically highlighted in the form – that the names of the subcontractors must already be provided at the time of bid submission.

⚠As to contradictions or corrections within the documents, the excerpts do not reveal any explicit conflicting statements (for example about scope or responsibilities); instead they emphasise that the long version of the LV is binding and that in case of doubt the contracting authority must be consulted.

✓The participation conditions state that all DIN/EN standards and ZTVs apply in the version valid three months before the end of the bid period, and where uncertainty exists the client is to be contacted, which clarifies precedence in case of normative changes.

✓No differing instructions on, for example, subcontractor disclosure, suitability proofs or pricing rules appear; they are repeated in a consistent manner across the participation conditions and forms.