Engineering capacity, without the headcount.

Arched is an AI-native engineering firm working for contractors worldwide. Send us the tender, estimating, checking or drawing work your team can’t get to. Our AI does the first pass, and our engineers check it and sign it off.

Send a project Book a call

A fixed fee, agreed before we start
Questions or a quote within one working day
Every deliverable signed off by an engineer

A-01/SERVICES04 SERVICES

Four services, from tender to site.

YOU SEND

PDFTender documentsPDFAddenda and clarificationsDOCBid timeline

YOU GET

RISK REGISTER · HIGHWAY PACKAGE

REFCLAUSERISKACTION

R-014.2Liquidated damages uncappedClarify

R-027.1Utility shifting by contractorPrice

R-0312.4Rate validity 180 daysNote

A review of scope, requirements and risks, plus drafts of technical proposals and clarifications for your team to finalise.

More about Tender and Bid Support

All services

A-02/HOW WE WORK04 STEPS

AI does the work.
Engineers sign it off.

DOCUMENT TRANSMITTAL · TR-118TO: ARCHED
FROMContractor
ISSUED FOREstimate
PACKAGEBridge, span 2
PDFTender_Documents_Vol1-3.pdf
Queued
DWGGA_Drawings_RevC.dwg
Queued
PDFTechnical_Specification.pdf
Queued
XLSBOQ_Template.xlsx
Queued
SCOPE AGREED · FIXED FEE CONFIRMED✓

More about how we work

A-03/RECENT WORK01 / 04

DETAILED ESTIMATE150 m river bridge

A 150 m bridge estimated from one drawing, the same day.

01THE ASKOne general arrangement drawing of a river bridge, to be priced on the Public Works Department's Schedule of Rates.

02WE DELIVEREDA detailed estimate with full workings and 23 clarifications, flagging ₹80 lakh+ of savings and risks.

03NEXTThe client came back for a second bridge's return walls and a bar bending schedule.

Read the case study

Road, culverts, bridges and sea walls on an island.

01THE ASKEstimate a highway upgrade on a remote island: the road, over 100 box culverts, six minor bridges, walls and tetrapod sea armour.

02WE DELIVEREDThe estimate, with island rates built up from sea freight, and each of about 2,000 numbers traced to the drawing, code or decision behind it.

03WHAT IT SHOWEDShipping the earth in rather than digging it locally makes it twelve times dearer, and takes it from about 3% of the road cost to about a third.

Read the case study

A bar bending schedule for a sloping bridge wing wall.

01THE ASKSchedule the reinforcement for a wing wall that falls from 6 m to 2 m, from one typical drawing.

02WE DELIVEREDEvery bar with its shape, legs and cutting length, in five height segments, plus the steel measured for payment.

03WHAT IT SHOWEDOne bar's curtailment isn't on the drawing. It moves the steel by about 7%, so it is flagged for the designer to confirm.

A sample schedule for a contractor, prepared by our AI and checked by our engineers.Read the case study

A claims review on a delayed public contract.

01THE ASKFind, value and rank a contractor's claims against the client on a delayed EPC contract, and set out the client's likely answers.

02WE DELIVEREDA claims report, a valued register and draft letters, from a full read of the contract and the correspondence.

03WHAT IT SHOWEDThe damages at risk outweighed what could be claimed straight away, so the extension came first.

Read the case study

All case studies

A-04/WHERE WE WORKCODES AND RATE BASIS

We work to your codes and standards.

Tell us the codes, formats and rate basis your project uses, wherever it is, and we confirm them with you when we scope the work.

CONCRETE

IS 456

Plain and reinforced concrete

BUILDING

DBC

Dubai Building Code

STRUCTURAL

Eurocodes

EN 1990 to EN 1999, structural design

STEEL

IS 800

General construction in steel

LOADS

SBC 301

Saudi Building Code, loads and forces

CONCRETE

ACI 318

Building code requirements for structural concrete

LOADS

IS 875

Design loads for buildings and structures

CONCRETE

SBC 304

Saudi Building Code, concrete structures

STEEL

AISC 360

Specification for structural steel buildings

SEISMIC

IS 1893

Earthquake-resistant design of structures

STEEL

SBC 306

Saudi Building Code, steel structures

LOADS

ASCE 7

Minimum design loads for buildings and other structures

BRIDGES

IRC:6

Loads and load combinations for road bridges

SPECIFICATIONS

QCS

Qatar Construction Specifications

BRIDGES

AASHTO LRFD

Bridge design specifications

BRIDGES

IRC:112

Concrete road bridges

MEASUREMENT

POMI

Principles of Measurement International

MEASUREMENT

RICS NRM

New rules of measurement

SPECIFICATIONS

MoRTH

Specifications for road and bridge works

FOUNDATIONS

SBC 303

Saudi Building Code, soils and foundations

MEASUREMENT

CESMM4

Civil engineering standard method of measurement

MEASUREMENT

IS 1200

Method of measurement of building and civil works

FIRE

SBC 801

Saudi Building Code, fire protection

HIGHWAYS

DMRB

Design Manual for Roads and Bridges

RATES

CPWD DSR

Delhi schedule of rates

FIRE

UAE FLSC

UAE Fire and Life Safety Code

BRIDGES

AS 5100

Bridge design

WATER

CPHEEO

Manuals on water supply and sewerage

BRIDGES

CSA S6

Canadian highway bridge design code

WATER

IS 3370

Concrete structures for storage of liquids

WATER

ACI 350

Environmental engineering concrete structures

WATER

IS 10500

Drinking water specification

WATER

AWWA

Water supply standards

FOUNDATIONS

IS 2911

Design and construction of pile foundations

MATERIALS

ASTM

Material testing standards

SEISMIC

IS 13920

Ductile design and detailing of RC structures

INFORMATION

ISO 19650

Information management using BIM

PAVEMENTS

IRC:37

Design of flexible pavements

CONTRACTS

FIDIC

Conditions of contract

PAVEMENTS

IRC:58

Design of rigid pavements

RAIL

IRS

Indian Railway Standard codes for bridges

PROJECTSBridges and flyoversRoads and highwaysBuildingsWater and wastewaterDrainageSite works

Engineering capacity, without the headcount.

Four services, from tender to site.

AI does the work.Engineers sign it off.

A 150 m bridge estimated from one drawing, the same day.

We work to your codes and standards.

AI does the work.
Engineers sign it off.