Bay of Plenty Times
  • Bay of Plenty Times home
  • Latest news
  • Business
  • Opinion
  • Lifestyle
  • Property
  • Sport
  • Video
  • Death notices
  • Classifieds

Subscriptions

  • Herald Premium
  • Viva Premium
  • The Listener
  • BusinessDesk

Sections

  • Latest news
  • On The Up
  • Business
  • Opinion
  • Lifestyle
  • Property
    • All Property
    • Residential property listings
  • Rural
    • All Rural
    • Dairy farming
    • Sheep & beef farming
    • Horticulture
    • Animal health
    • Rural business
    • Rural life
    • Rural technology
  • Sport

Locations

  • Coromandel & Hauraki
  • Katikati
  • Tauranga
  • Mount Maunganui
  • Pāpāmoa
  • Te Puke
  • Whakatāne
  • Rotorua

Media

  • Video
  • Photo galleries
  • Today's Paper - E-Editions
  • Photo sales
  • Classifieds

Weather

  • Thames
  • Tauranga
  • Whakatāne
  • Rotorua

NZME Network

  • Advertise with NZME
  • OneRoof
  • Driven Car Guide
  • BusinessDesk
  • Newstalk ZB
  • Sunlive
  • ZM
  • The Hits
  • Coast
  • Radio Hauraki
  • The Alternative Commentary Collective
  • Gold
  • Flava
  • iHeart Radio
  • Hokonui
  • Radio Wanaka
  • iHeartCountry New Zealand
  • Restaurant Hub
  • NZME Events

SubscribeSign In

Advertisement
Advertise with NZME.
Home / Bay of Plenty Times

Historic defensive trench unearthed by roadworks

John Cousins
By John Cousins
Senior reporter, Bay of Plenty Times·Bay of Plenty Times·
3 Mar, 2017 07:00 PM4 mins to read

Subscribe to listen

Access to Herald Premium articles require a Premium subscription. Subscribe now to listen.
Already a subscriber?  Sign in here

Listening to articles is free for open-access content—explore other articles or learn more about text-to-speech.
‌
Save

    Share this article

Archaeologist Sian Keith at the site of the road widening where an unusual pattern in the soil revealed a significant cultural discovery. Photo/Andrew Warner.

Archaeologist Sian Keith at the site of the road widening where an unusual pattern in the soil revealed a significant cultural discovery. Photo/Andrew Warner.

A rare discovery believed to date back to the musket wars of the early 19th century has created huge interest at the site of road widening in Tauranga.

Contractors were widening the side of State Highway 29 near the Maungatapu Bridge when project archaeologist Sian Keith noticed an unusual pattern in the exposed ground.

Numerous kumara and fire pits had already been found when she saw what appeared to be a long line of pits.

''Looking at it more carefully, I saw they were all connected.''

It then dawned on her that she was looking at a defensive trench, dug to protect the nearby pa, Puwharariki.

Advertisement
Advertise with NZME.
Advertisement
Advertise with NZME.

A test dig confirmed that it was indeed a trench system, measuring about 40m long and with zig-zag buttresses to stop one inside shot sweeping the whole length of the ditch.

Archaeologist Tom Barker from Thames uses a shovel to turn back the pages of history and reveal the shape of a defensive Maori trench. PHOTO/ANDREW WARNER
Archaeologist Tom Barker from Thames uses a shovel to turn back the pages of history and reveal the shape of a defensive Maori trench. PHOTO/ANDREW WARNER

While she was not surprised at finding kumara pits, given the history of Maori habitation in the area, the trench was completely different.

Earthworks came to an immediate halt and a team of six archaeologists were recruited to remove the fill from the ditch and reveal how it would have looked at least 180 years ago.

Advertisement
Advertise with NZME.

Miss Keith said she had never found a defensive trench in her 20 years working as an archaeologist.

''It is quite rare to find them. It has not been disturbed from the day it was backfilled . . . it is a really good example of a rifle trench.''

Five musket balls and a gun flint have so far been sifted out of soil dug from the trench, leading to speculation that it dated back to the New Zealand Land Wars or the earlier inter-tribal Musket Wars.

Miss Keith said the site was away from other well-known battle sites around Tauranga and, depending on the date, could add important information to the historic record.

(L-R) Des Heke Kaiawha, Kihi Ngatai, and Puhirake Ihaka inspect a defensive system used by their ancestors to fend off musket-carrying attackers PHOTO/ANDREW WARNER
(L-R) Des Heke Kaiawha, Kihi Ngatai, and Puhirake Ihaka inspect a defensive system used by their ancestors to fend off musket-carrying attackers PHOTO/ANDREW WARNER

The direction of the trench indicated it was built to defend the pa from an attack by warriors arriving in a waka, perhaps along a weak point in the defensive system.

A representative from local hapu Ngai Tukairangi, Ngati He and Ngati Tapu was monitoring the excavation.

The road was being widened to provide room for the construction of a central median barrier, with the excavation and recording expected to take about two weeks before the area was covered over to become the shoulder of the road.

The Bay's state highways manager Niclas Johansson of the New Zealand Transport Agency said the find could be nationally significant so it was important to take the time to find out as much as they could to honour tangata whenua.

Ngai Te Rangi iwi kaumatua Puhirake Ihaka said the archaeologists were finding the remains of Puwharariki Pa, which sat between Te Ngaio Pa by the bridge, and Oruamatua Pa, which sat on the big headland off SH29 towards Baypark.

He suspected that the trench was built to protect the pa from raiding parties during the Musket Wars from 1818 to the 1830s. The use of muskets by warring Maori signified the demise of hand-to-hand fighting using taiaha and mere.

Advertisement
Advertise with NZME.

Mr Ihaka said the trench was a very significant find and would be registered as wahi tapu to mark its importance for future generations.

Kihi Ngatai (Ngai Te Rangi) said the last time he had seen a trench system like this was at the historic battleground of Gate Pa before roading and development destroyed Maori defensive earthworks surrounding the battle pa.

''It makes you wonder how old its is.''

SH29 roading project
- Trench discovery delays project by about two weeks
- Central median barrier completed by the middle of the year
- Speed limit 70km/h through construction site

Save

    Share this article

Latest from Bay of Plenty Times

Bay of Plenty Times

Rural community 'in shock' as industrial park greenlit

Premium
Bay of Plenty Times

'Stay on your side of the Bombays': Rotorua developer's swipe at Auckland firms

Bay of Plenty Times

Kora the dog's journey: From failed police trainee to rescue hero


Sponsored

Solar bat monitors uncover secrets of Auckland’s night sky

Advertisement
Advertise with NZME.

Latest from Bay of Plenty Times

Rural community 'in shock' as industrial park greenlit
Bay of Plenty Times

Rural community 'in shock' as industrial park greenlit

It will add up to 125 vehicle movements an hour on local roads.

16 Jul 06:00 PM
Premium
Premium
'Stay on your side of the Bombays': Rotorua developer's swipe at Auckland firms
Bay of Plenty Times

'Stay on your side of the Bombays': Rotorua developer's swipe at Auckland firms

16 Jul 06:00 PM
Kora the dog's journey: From failed police trainee to rescue hero
Bay of Plenty Times

Kora the dog's journey: From failed police trainee to rescue hero

16 Jul 05:00 PM


Solar bat monitors uncover secrets of Auckland’s night sky
Sponsored

Solar bat monitors uncover secrets of Auckland’s night sky

06 Jul 09:47 PM
NZ Herald
  • About NZ Herald
  • Meet the journalists
  • Newsletters
  • Classifieds
  • Help & support
  • Contact us
  • House rules
  • Privacy Policy
  • Terms of use
  • Competition terms & conditions
  • Our use of AI
Subscriber Services
  • Bay of Plenty Times e-edition
  • Manage your print subscription
  • Manage your digital subscription
  • Subscribe to Herald Premium
  • Subscribe to the Bay of Plenty Times
  • Gift a subscription
  • Subscriber FAQs
  • Subscription terms & conditions
  • Promotions and subscriber benefits
NZME Network
  • Bay of Plenty Times
  • The New Zealand Herald
  • The Northland Age
  • The Northern Advocate
  • Waikato Herald
  • Rotorua Daily Post
  • Hawke's Bay Today
  • Whanganui Chronicle
  • Viva
  • NZ Listener
  • Newstalk ZB
  • BusinessDesk
  • OneRoof
  • Driven Car Guide
  • iHeart Radio
  • Restaurant Hub
NZME
  • About NZME
  • NZME careers
  • Advertise with NZME
  • Digital self-service advertising
  • Book your classified ad
  • Photo sales
  • NZME Events
  • © Copyright 2025 NZME Publishing Limited
TOP